grepid: change usage to accept arbitrary grep arguments, require "where" param

grepid

@@ -1,8 +1,5 @@
 #!/bin/bash
 
 id="$1"
-where="$2"
+shift
-if [[ "$where" == "" ]]; then
+exec grep --exclude-dir .svn --color=auto -R '\<'"${id}"'\>' "$@"
-    where=.
-fi
-exec grep --exclude-dir .svn --color=auto -R '\<'"${id}"'\>' ${where}