better regex comparison

fixes:

warning: deprecated Object#=~ is called on TrueClass
warning: deprecated Object#=~ is called on FalseClass

also:

rubocop wanted some spacing for guard clauses
and wanted to use match instead of =~ and I obliged

lib/patches/ruport_patch.rb

@@ -35,7 +35,7 @@ class Formatter::SafeCSV < Formatter::CSV
     def build_table_body
       data.each do |row|
         row_data = row.map do |column_value|
-          column_value.insert(0, "'") if column_value =~ /^\s*[@=+-]/ && column_value =~ /[(!\/]/
+          column_value.insert(0, "'") if column_value.kind_of?(String) && column_value.match?(/^\s*[@=+-]/) && column_value.match?(/[(!\/]/)
           column_value
         end
 

lib/tasks/evm_settings.rake

@@ -81,16 +81,22 @@ module EvmSettings
   private_class_method :keyval_to_hash
 
   def self.str_to_value(value)
-    return true  if value =~ /true/i
-    return false if value =~ /false/i
-    return nil   if value =~ /nil/
+    return value unless value.kind_of?(String)
+
+    dvalue = value.downcasex
+    return true  if dvalue.include?("true")
+    return false if dvalue.include?("false")
+    return nil   if value.include?("nil")
+
     value
   end
   private_class_method :str_to_value
 
   def self.value_to_str(value)
-    return "true"  if value == true || value =~ /true/i
-    return "false" if value == false || value =~ /false/i
+    dvalue = value.downcase if value.kind_of?(String)
+    return "true"  if value == true || dvalue&.include?("true")
+    return "false" if value == false || dvalue&.include?("false")
+
     value
   end
   private_class_method :value_to_str