add color as a synonym for colours

debian/changelog

@@ -1,3 +1,9 @@
+grc (1.9) unstable; urgency=low
+
+  * add `colors' as a synonym of `colours' (and the singulars, too)
+
+ -- Radovan Garabík <garabik@kassiopeia.juls.savba.sk>  Tue, 31 Mar 2015 17:44:11 +0200
+
 grc (1.8-1) unstable; urgency=low
 
   * added support for Ki, Gi, Ti for df (thanks to Juraj Bednár)

grcat

@@ -121,6 +121,8 @@ while not is_last:
             break
         keyword, value = split(l[:-1], "=", 1)
         keyword = lower(keyword)
+        if keyword in  ('colors', 'colour', 'color'):
+            keyword = 'colours'
         if not keyword in ["regexp", "colours", "count", "command", "skip", "replace"]:
             raise ValueError("Invalid keyword")
         ll[keyword] = value