Fix editorconfig by removing blank space between exact files

Remove blank space between exact files (*.yml and package.json).
Can't constrain package.json file if comma is followed by blank space.

Author: Pengxn

.editorconfig

@@ -13,5 +13,5 @@ indent_style = space
 indent_size = 4
 
 # Matches the exact files either package.json or .travis.yml
-[{*.yml, package.json}]
+[{*.yml,package.json}]
 indent_size = 2