fix: update regex to include unicode extensions -- no tests yet cc: @remy

Author: lewiscowper

lib/config/exec.js

@@ -155,7 +155,7 @@ function exec(nodemonOptions, execMap) {
   // BIG NOTE: user can't do this: nodemon -e *.js
   // because the terminal will automatically expand the glob against
   // the file system :(
-  extension = extension.match(/\w+/g).join(',');
+  extension = extension.match(/[^,.\s]+/g).join(',');
 
   options.ext = extension;