When piping output into a pager like "less", quiting the pager before
the output was consumed would cause and exception to be raise in
logmerge; suppress this specific error, because it's not helpful.
diff --git a/Tools/scripts/logmerge.py b/Tools/scripts/logmerge.py
index 977324d..54d1676 100755
--- a/Tools/scripts/logmerge.py
+++ b/Tools/scripts/logmerge.py
@@ -34,7 +34,7 @@
 from their output.
 """
 
-import os, sys, getopt, re
+import os, sys, errno, getopt, re
 
 sep1 = '='*77 + '\n'                    # file separator
 sep2 = '-'*28 + '\n'                    # revision separator
@@ -177,4 +177,8 @@
         prev.append((date, working_file, rev, author))
         prevtext = text
 
-main()
+try:
+    main()
+except IOError, e:
+    if e.errno != errno.EPIPE:
+        raise