churn: do not crash on empty lines in alias file stable

churn: do not crash on empty lines in alias file

--- a/hgext/churn.py	Sun Aug 29 22:37:58 2010 +0200
+++ b/hgext/churn.py	Sun Aug 29 10:54:22 2010 +0200
@@ -129,6 +129,8 @@
         aliases = repo.wjoin('.hgchurn')
     if aliases:
         for l in open(aliases, "r"):
+            if not l.strip():
+                continue
             alias, actual = l.split('=' in l and '=' or None, 1)
             amap[alias.strip()] = actual.strip()
 

--- a/tests/test-churn	Sun Aug 29 22:37:58 2010 +0200
+++ b/tests/test-churn	Sun Aug 29 10:54:22 2010 +0200
@@ -38,6 +38,7 @@
 echo % churn with aliases
 cat > ../aliases <<EOF
 user1 alias1
+
 user3 alias3
 EOF
 hg churn --aliases ../aliases