diff --git a/Formula/s/skylighting.rb b/Formula/s/skylighting.rb
index 6041310706f95..ae2b0180affe5 100644
--- a/Formula/s/skylighting.rb
+++ b/Formula/s/skylighting.rb
@@ -38,7 +38,7 @@ def install
   end
 
   test do
-    (testpath/"Test.java").write <<~EOF
+    (testpath/"Test.java").write <<~JAVA
       import java.util.*;
 
       public class Test {
@@ -51,74 +51,74 @@ def install
               }
           }
       }
-    EOF
-    expected_out = <<~EOF
-      \\documentclass{article}
-      \\usepackage[margin=1in]{geometry}
-      \\usepackage{color}
-      \\usepackage{fancyvrb}
-      \\newcommand{\\VerbBar}{|}
-      \\newcommand{\\VERB}{\\Verb[commandchars=\\\\\\{\\}]}
-      \\DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\\\\{\\}}
-      % Add ',fontsize=\\small' for more characters per line
-      \\usepackage{framed}
-      \\definecolor{shadecolor}{RGB}{255,255,255}
-      \\newenvironment{Shaded}{\\begin{snugshade}}{\\end{snugshade}}
-      \\newcommand{\\AlertTok}[1]{\\textcolor[rgb]{0.75,0.01,0.01}{\\textbf{\\colorbox[rgb]{0.97,0.90,0.90}{#1}}}}
-      \\newcommand{\\AnnotationTok}[1]{\\textcolor[rgb]{0.79,0.38,0.79}{#1}}
-      \\newcommand{\\AttributeTok}[1]{\\textcolor[rgb]{0.00,0.34,0.68}{#1}}
-      \\newcommand{\\BaseNTok}[1]{\\textcolor[rgb]{0.69,0.50,0.00}{#1}}
-      \\newcommand{\\BuiltInTok}[1]{\\textcolor[rgb]{0.39,0.29,0.61}{\\textbf{#1}}}
-      \\newcommand{\\CharTok}[1]{\\textcolor[rgb]{0.57,0.30,0.62}{#1}}
-      \\newcommand{\\CommentTok}[1]{\\textcolor[rgb]{0.54,0.53,0.53}{#1}}
-      \\newcommand{\\CommentVarTok}[1]{\\textcolor[rgb]{0.00,0.58,1.00}{#1}}
-      \\newcommand{\\ConstantTok}[1]{\\textcolor[rgb]{0.67,0.33,0.00}{#1}}
-      \\newcommand{\\ControlFlowTok}[1]{\\textcolor[rgb]{0.12,0.11,0.11}{\\textbf{#1}}}
-      \\newcommand{\\DataTypeTok}[1]{\\textcolor[rgb]{0.00,0.34,0.68}{#1}}
-      \\newcommand{\\DecValTok}[1]{\\textcolor[rgb]{0.69,0.50,0.00}{#1}}
-      \\newcommand{\\DocumentationTok}[1]{\\textcolor[rgb]{0.38,0.47,0.50}{#1}}
-      \\newcommand{\\ErrorTok}[1]{\\textcolor[rgb]{0.75,0.01,0.01}{\\underline{#1}}}
-      \\newcommand{\\ExtensionTok}[1]{\\textcolor[rgb]{0.00,0.58,1.00}{\\textbf{#1}}}
-      \\newcommand{\\FloatTok}[1]{\\textcolor[rgb]{0.69,0.50,0.00}{#1}}
-      \\newcommand{\\FunctionTok}[1]{\\textcolor[rgb]{0.39,0.29,0.61}{#1}}
-      \\newcommand{\\ImportTok}[1]{\\textcolor[rgb]{1.00,0.33,0.00}{#1}}
-      \\newcommand{\\InformationTok}[1]{\\textcolor[rgb]{0.69,0.50,0.00}{#1}}
-      \\newcommand{\\KeywordTok}[1]{\\textcolor[rgb]{0.12,0.11,0.11}{\\textbf{#1}}}
-      \\newcommand{\\NormalTok}[1]{\\textcolor[rgb]{0.12,0.11,0.11}{#1}}
-      \\newcommand{\\OperatorTok}[1]{\\textcolor[rgb]{0.12,0.11,0.11}{#1}}
-      \\newcommand{\\OtherTok}[1]{\\textcolor[rgb]{0.00,0.43,0.16}{#1}}
-      \\newcommand{\\PreprocessorTok}[1]{\\textcolor[rgb]{0.00,0.43,0.16}{#1}}
-      \\newcommand{\\RegionMarkerTok}[1]{\\textcolor[rgb]{0.00,0.34,0.68}{\\colorbox[rgb]{0.88,0.91,0.97}{#1}}}
-      \\newcommand{\\SpecialCharTok}[1]{\\textcolor[rgb]{0.24,0.68,0.91}{#1}}
-      \\newcommand{\\SpecialStringTok}[1]{\\textcolor[rgb]{1.00,0.33,0.00}{#1}}
-      \\newcommand{\\StringTok}[1]{\\textcolor[rgb]{0.75,0.01,0.01}{#1}}
-      \\newcommand{\\VariableTok}[1]{\\textcolor[rgb]{0.00,0.34,0.68}{#1}}
-      \\newcommand{\\VerbatimStringTok}[1]{\\textcolor[rgb]{0.75,0.01,0.01}{#1}}
-      \\newcommand{\\WarningTok}[1]{\\textcolor[rgb]{0.75,0.01,0.01}{#1}}
-      \\title{#{testpath/"Test.java"}}
+    JAVA
+    expected_out = <<~'LATEX'
+      \documentclass{article}
+      \usepackage[margin=1in]{geometry}
+      \usepackage{color}
+      \usepackage{fancyvrb}
+      \newcommand{\VerbBar}{|}
+      \newcommand{\VERB}{\Verb[commandchars=\\\{\}]}
+      \DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\{\}}
+      % Add ',fontsize=\small' for more characters per line
+      \usepackage{framed}
+      \definecolor{shadecolor}{RGB}{255,255,255}
+      \newenvironment{Shaded}{\begin{snugshade}}{\end{snugshade}}
+      \newcommand{\AlertTok}[1]{\textcolor[rgb]{0.75,0.01,0.01}{\textbf{\colorbox[rgb]{0.97,0.90,0.90}{#1}}}}
+      \newcommand{\AnnotationTok}[1]{\textcolor[rgb]{0.79,0.38,0.79}{#1}}
+      \newcommand{\AttributeTok}[1]{\textcolor[rgb]{0.00,0.34,0.68}{#1}}
+      \newcommand{\BaseNTok}[1]{\textcolor[rgb]{0.69,0.50,0.00}{#1}}
+      \newcommand{\BuiltInTok}[1]{\textcolor[rgb]{0.39,0.29,0.61}{\textbf{#1}}}
+      \newcommand{\CharTok}[1]{\textcolor[rgb]{0.57,0.30,0.62}{#1}}
+      \newcommand{\CommentTok}[1]{\textcolor[rgb]{0.54,0.53,0.53}{#1}}
+      \newcommand{\CommentVarTok}[1]{\textcolor[rgb]{0.00,0.58,1.00}{#1}}
+      \newcommand{\ConstantTok}[1]{\textcolor[rgb]{0.67,0.33,0.00}{#1}}
+      \newcommand{\ControlFlowTok}[1]{\textcolor[rgb]{0.12,0.11,0.11}{\textbf{#1}}}
+      \newcommand{\DataTypeTok}[1]{\textcolor[rgb]{0.00,0.34,0.68}{#1}}
+      \newcommand{\DecValTok}[1]{\textcolor[rgb]{0.69,0.50,0.00}{#1}}
+      \newcommand{\DocumentationTok}[1]{\textcolor[rgb]{0.38,0.47,0.50}{#1}}
+      \newcommand{\ErrorTok}[1]{\textcolor[rgb]{0.75,0.01,0.01}{\underline{#1}}}
+      \newcommand{\ExtensionTok}[1]{\textcolor[rgb]{0.00,0.58,1.00}{\textbf{#1}}}
+      \newcommand{\FloatTok}[1]{\textcolor[rgb]{0.69,0.50,0.00}{#1}}
+      \newcommand{\FunctionTok}[1]{\textcolor[rgb]{0.39,0.29,0.61}{#1}}
+      \newcommand{\ImportTok}[1]{\textcolor[rgb]{1.00,0.33,0.00}{#1}}
+      \newcommand{\InformationTok}[1]{\textcolor[rgb]{0.69,0.50,0.00}{#1}}
+      \newcommand{\KeywordTok}[1]{\textcolor[rgb]{0.12,0.11,0.11}{\textbf{#1}}}
+      \newcommand{\NormalTok}[1]{\textcolor[rgb]{0.12,0.11,0.11}{#1}}
+      \newcommand{\OperatorTok}[1]{\textcolor[rgb]{0.12,0.11,0.11}{#1}}
+      \newcommand{\OtherTok}[1]{\textcolor[rgb]{0.00,0.43,0.16}{#1}}
+      \newcommand{\PreprocessorTok}[1]{\textcolor[rgb]{0.00,0.43,0.16}{#1}}
+      \newcommand{\RegionMarkerTok}[1]{\textcolor[rgb]{0.00,0.34,0.68}{\colorbox[rgb]{0.88,0.91,0.97}{#1}}}
+      \newcommand{\SpecialCharTok}[1]{\textcolor[rgb]{0.24,0.68,0.91}{#1}}
+      \newcommand{\SpecialStringTok}[1]{\textcolor[rgb]{1.00,0.33,0.00}{#1}}
+      \newcommand{\StringTok}[1]{\textcolor[rgb]{0.75,0.01,0.01}{#1}}
+      \newcommand{\VariableTok}[1]{\textcolor[rgb]{0.00,0.34,0.68}{#1}}
+      \newcommand{\VerbatimStringTok}[1]{\textcolor[rgb]{0.75,0.01,0.01}{#1}}
+      \newcommand{\WarningTok}[1]{\textcolor[rgb]{0.75,0.01,0.01}{#1}}
+      \title{Test.java}
 
-      \\begin{document}
-      \\maketitle
-      \\begin{Shaded}
-      \\begin{Highlighting}[]
-      \\KeywordTok{import} \\ImportTok{java}\\OperatorTok{.}\\ImportTok{util}\\OperatorTok{.*;}
+      \begin{document}
+      \maketitle
+      \begin{Shaded}
+      \begin{Highlighting}[]
+      \KeywordTok{import} \ImportTok{java}\OperatorTok{.}\ImportTok{util}\OperatorTok{.*;}
 
-      \\KeywordTok{public} \\KeywordTok{class}\\NormalTok{ Test }\\OperatorTok{\\{}
-          \\KeywordTok{public} \\DataTypeTok{static} \\DataTypeTok{void} \\FunctionTok{main}\\OperatorTok{(}\\BuiltInTok{String}\\OperatorTok{[]}\\NormalTok{ args}\\OperatorTok{)} \\KeywordTok{throws} \\BuiltInTok{Exception} \\OperatorTok{\\{}
-              \\DataTypeTok{final} \\BuiltInTok{ArrayDeque}\\OperatorTok{\\textless{}}\\BuiltInTok{String}\\OperatorTok{\\textgreater{}}\\NormalTok{ argDeque }\\OperatorTok{=} \\KeywordTok{new} \\BuiltInTok{ArrayDeque}\\OperatorTok{\\textless{}\\textgreater{}(}\\BuiltInTok{Arrays}\\OperatorTok{.}\\FunctionTok{asList}\\OperatorTok{(}\\NormalTok{args}\\OperatorTok{));}
-              \\ControlFlowTok{for} \\OperatorTok{(}\\NormalTok{arg in argDeque}\\OperatorTok{)} \\OperatorTok{\\{}
-                  \\BuiltInTok{System}\\OperatorTok{.}\\FunctionTok{out}\\OperatorTok{.}\\FunctionTok{println}\\OperatorTok{(}\\NormalTok{arg}\\OperatorTok{);}
-                  \\ControlFlowTok{if} \\OperatorTok{(}\\NormalTok{arg}\\OperatorTok{.}\\FunctionTok{equals}\\OperatorTok{(}\\StringTok{"foo"}\\OperatorTok{))}
-                      \\ControlFlowTok{throw} \\KeywordTok{new} \\BuiltInTok{NoSuchElementException}\\OperatorTok{();}
-              \\OperatorTok{\\}}
-          \\OperatorTok{\\}}
-      \\OperatorTok{\\}}
-      \\end{Highlighting}
-      \\end{Shaded}
+      \KeywordTok{public} \KeywordTok{class}\NormalTok{ Test }\OperatorTok{\{}
+          \KeywordTok{public} \DataTypeTok{static} \DataTypeTok{void} \FunctionTok{main}\OperatorTok{(}\BuiltInTok{String}\OperatorTok{[]}\NormalTok{ args}\OperatorTok{)} \KeywordTok{throws} \BuiltInTok{Exception} \OperatorTok{\{}
+              \DataTypeTok{final} \BuiltInTok{ArrayDeque}\OperatorTok{\textless{}}\BuiltInTok{String}\OperatorTok{\textgreater{}}\NormalTok{ argDeque }\OperatorTok{=} \KeywordTok{new} \BuiltInTok{ArrayDeque}\OperatorTok{\textless{}\textgreater{}(}\BuiltInTok{Arrays}\OperatorTok{.}\FunctionTok{asList}\OperatorTok{(}\NormalTok{args}\OperatorTok{));}
+              \ControlFlowTok{for} \OperatorTok{(}\NormalTok{arg in argDeque}\OperatorTok{)} \OperatorTok{\{}
+                  \BuiltInTok{System}\OperatorTok{.}\FunctionTok{out}\OperatorTok{.}\FunctionTok{println}\OperatorTok{(}\NormalTok{arg}\OperatorTok{);}
+                  \ControlFlowTok{if} \OperatorTok{(}\NormalTok{arg}\OperatorTok{.}\FunctionTok{equals}\OperatorTok{(}\StringTok{"foo"}\OperatorTok{))}
+                      \ControlFlowTok{throw} \KeywordTok{new} \BuiltInTok{NoSuchElementException}\OperatorTok{();}
+              \OperatorTok{\}}
+          \OperatorTok{\}}
+      \OperatorTok{\}}
+      \end{Highlighting}
+      \end{Shaded}
 
-      \\end{document}
-    EOF
-    actual_out = shell_output("#{bin/"skylighting"} -f latex #{testpath/"Test.java"}")
-    assert_equal actual_out.strip, expected_out.strip
+      \end{document}
+    LATEX
+
+    assert_equal expected_out.strip, shell_output("#{bin}/skylighting -f latex Test.java").strip
   end
 end