ignore EPIPE happens on RHEL

src/cdiff.py

@@ -16,6 +16,7 @@ if sys.hexversion < 0x02050000:
 
 import os
 import re
+import errno
 import difflib
 
 
@@ -492,8 +493,12 @@ if __name__ == '__main__':
         # args stolen fron git source: github.com/git/git/blob/master/pager.c
         pager = subprocess.Popen(['less', '-FRSXK'],
                 stdin=subprocess.PIPE, stdout=sys.stdout)
-        for line in color_diff:
-            pager.stdin.write(line)
+        try:
+            for line in color_diff:
+                pager.stdin.write(line)
+        except IOError as e:
+            if e.errno == errno.EPIPE:
+                pass
 
         pager.stdin.close()
         pager.wait()