fix(git): Git uses tabs in config files, we should warn on spaces but…

… not tabs

git.nanorc

@@ -6,7 +6,7 @@ color brightmagenta "^[[:space:]]*\[.*\]$"
 color yellow ""(\\.|[^"])*"|'(\\.|[^'])*'"
 color brightblack "(^|[[:space:]])#([^{].*)?$"
 color ,green "[[:space:]]+$"
-color ,red "	+"
+color ,red "^ +"
 
 # This code is free software; you can redistribute it and/or modify it under
 # the terms of the new BSD License.