python2 compatibility if command not found or permission denied

grc

@@ -4,13 +4,25 @@ from __future__ import print_function
 
 import os, re, string, sys, getopt, signal
 
+# python 2/3 compatibility
+
+try:
+    FileNotFoundError
+except NameError:
+    FileNotFoundError = OSError
+
+try:
+    PermissionError
+except NameError:
+    PermissionError = OSError
+
 
 def version():
-    print ("Generic Colouriser 1.11")
+    print ("Generic Colouriser 1.11.1rc")
     sys.exit()
 
 def help():
-    print("""Generic Colouriser 1.11
+    print("""Generic Colouriser 1.11.1rc
 grc [options] command [args]
 Options:
 -e --stderr    redirect stderr. If this option is selected,