Convert filename regexes to single-quoted strings

Author: injust

runtime/syntax/git-commit.yaml

@@ -1,7 +1,7 @@
 filetype: git-commit
 
 detect:
-    filename: "^(.*[\\/])?(COMMIT_EDITMSG|TAG_EDITMSG|MERGE_MSG)$"
+    filename: '^(.*[\/])?(COMMIT_EDITMSG|TAG_EDITMSG|MERGE_MSG)$'
 
 rules:
     # File changes

runtime/syntax/git-config.yaml

@@ -1,7 +1,7 @@
 filetype: git-config
 
 detect:
-    filename: "git(config|modules)$|^(.*[\\/])?\\.?git[\\/]config$"
+    filename: 'git(config|modules)$|^(.*[\/])?\.?git[\/]config$'
 
 rules:
     - constant: "\\<(true|false)\\>"

runtime/syntax/git-rebase-todo.yaml

@@ -1,7 +1,7 @@
 filetype: git-rebase-todo
 
 detect:
-    filename: "^(.*[\\/])?git\\-rebase\\-todo$"
+    filename: '^(.*[\/])?git\-rebase\-todo$'
 
 rules:
     # Rebase commands

runtime/syntax/ruby.yaml

@@ -1,7 +1,7 @@
 filetype: ruby
 
 detect:
-    filename: "\\.(rb|rake|gemspec)$|^(.*[\\/])?(Gemfile|config.ru|Rakefile|Capfile|Vagrantfile|Guardfile|Appfile|Fastfile|Pluginfile|Podfile|\\.?[Bb]rewfile)$"
+    filename: '\.(rb|rake|gemspec)$|^(.*[\/])?(Gemfile|config.ru|Rakefile|Capfile|Vagrantfile|Guardfile|Appfile|Fastfile|Pluginfile|Podfile|\.?[Bb]rewfile)$'
     header: "^#!.*/(env +)?ruby( |$)"
 
 rules: