make manifest-merging test reproduceable

tests/test-manifest-merging

@@ -26,7 +26,7 b' cd ..'
 
 echo % pull into work and merge
 cd foo-work
-hg pull
+hg pull -q
 hg merge
 
 echo % revert to changeset 1 to simulate a failed merge

tests/test-manifest-merging.out

@@ -8,13 +8,6 b' adding beta'
 % create gamma in first repo
 adding gamma
 % pull into work and merge
-pulling from /tmp/hgtests.H64eVH/test-manifest-merging/foo-base
-searching for changes
-adding changesets
-adding manifests
-adding file changes
-added 1 changesets with 1 changes to 1 files (+1 heads)
-(run 'hg heads' to see heads, 'hg merge' to merge)
 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
 (branch merge, don't forget to commit)
 % revert to changeset 1 to simulate a failed merge