langtool: improve insertion of missing sections (logging, empty line)

Tools/langtool/src/inifile.rs

@@ -111,6 +111,10 @@ impl IniFile {
             }
         }
         // Reached the end for some reason? Add it.
+        // Also add an empty line to the previous section.
+        if let Some(last) = self.sections.last_mut() {
+            last.lines.push("".into());
+        }
         self.sections.push(section.clone());
         true
     }

Tools/langtool/src/main.rs

@@ -47,6 +47,10 @@ fn copy_missing_lines(reference_ini: &IniFile, target_ini: &mut IniFile) -> io::
                 //target_section.remove_lines_if_not_in(reference_section);
                 target_section.comment_out_lines_if_not_in(reference_section);
             }
+        } else {
+            // Note: insert_section_if_missing will copy the entire section,
+            // no need to loop over the lines here.
+            println!("Inserted missing section: {}", reference_section.name);
         }
     }
     Ok(())
@@ -114,7 +118,8 @@ fn main() {
     let root = "../../assets/lang";
     let reference_ini_filename = "en_US.ini";
 
-    let mut reference_ini = IniFile::parse(&format!("{}/{}", root, reference_ini_filename)).unwrap();
+    let mut reference_ini =
+        IniFile::parse(&format!("{}/{}", root, reference_ini_filename)).unwrap();
 
     if filenames.is_empty() {
         // Grab them all.