[PATCH stable] histedit: use str.startswith, remove duplicate line and extra blank line

[adgar at google.com]

# HG changeset patch
# User Mike Edgar <adgar at google.com>
# Date 1407427942 14400
#      Thu Aug 07 12:12:22 2014 -0400
# Node ID 4fc87e9ba34429406ff29446c5fdd8b5a17687e1
# Parent  ba5fc3f81f1588507a5a84ac2b43679705ceec7b
histedit: use str.startswith, remove duplicate line and extra blank line

diff -r ba5fc3f81f15 -r 4fc87e9ba344 hgext/histedit.py
--- a/hgext/histedit.py	Tue Jun 17 20:26:51 2014 -0700
+++ b/hgext/histedit.py	Thu Aug 07 12:12:22 2014 -0400
@@ -209,7 +209,6 @@
     return commitfunc
 
 
-
 def applychanges(ui, repo, ctx, opts):
     """Merge changeset from ctx (only) in the current working directory"""
     wcpar = repo.dirstate.parents()[0]
@@ -602,11 +601,10 @@
             rules = f.read()
             f.close()
         rules = [l for l in (r.strip() for r in rules.splitlines())
-                 if l and not l[0] == '#']
+                 if not l.startswith('#')]
         rules = verifyrules(rules, repo, ctxs)
 
         parentctx = repo[root].parents()[0]
-        keep = opts.get('keep', False)
         replacements = []