make test-mq-qdelete work reliably (issue1180)

if after a and b has been applied, their hash starts with c, then the test
would fail (because there would be a rev c which would be seen as "applied")
so probability of failure would be 2*1/16.

tests/test-mq-qdelete

@@ -1,67 +1,67
 #!/bin/sh
 
 echo "[extensions]" >> $HGRCPATH
 echo "mq=" >> $HGRCPATH
 
 hg init a
 cd a
 
 echo 'base' > base
 hg ci -Ambase -d '1 0'
 
-hg qnew a
-hg qnew b
-hg qnew c
+hg qnew -d '1 0' a
+hg qnew -d '1 0' b
+hg qnew -d '1 0' c
 
 hg qdel
 
 hg qdel c
 hg qpop
 hg qdel c
 hg qseries
 ls .hg/patches
 hg qpop
 hg qdel -k b
 ls .hg/patches
 hg qdel -r a
 hg qapplied
 hg log --template '{rev} {desc}\n'
 
 hg qnew d
 hg qnew e
 hg qnew f
 
 hg qdel -r e
 hg qdel -r qbase:e
 hg qapplied
 hg log --template '{rev} {desc}\n'
 
 cd ..
 hg init b
 cd b
 
 echo 'base' > base
-hg ci -Ambase
+hg ci -Ambase -d '1 0'
 
 hg qfinish
 hg qfinish -a
 
-hg qnew a
-hg qnew b
-hg qnew c
+hg qnew -d '1 0' a
+hg qnew -d '1 0' b
+hg qnew c # XXX fails to apply by /usr/bin/patch if we put a date
 
 hg qfinish 0
 hg qfinish b
 
 hg qpop
 hg qfinish -a c
 hg qpush
 
 hg qfinish qbase:b
 hg qapplied
 hg log --template '{rev} {desc}\n'
 
 hg qfinish -a c
 hg qapplied
 hg log --template '{rev} {desc}\n'
 ls .hg/patches