tests: work around FreeBSD's unzip having slightly different output

According to man 1 unzip, this unzip appeared in FreeBSD 8.0. It's
what comes as /usr/bin/unzip, so we may as well cater to it since it's
easy.

tests/test-archive.t

@@ -327,14 +327,11 b' old file -- date clamped to 1980'
   $ hg add old
   $ hg commit -m old
   $ hg archive ../old.zip
-  $ unzip -l ../old.zip
+  $ unzip -l ../old.zip | grep -v -- ----- | egrep -v files$
   Archive:  ../old.zip
   \s*Length.* (re)
-  *-----* (glob)
   *172*80*00:00*old/.hg_archival.txt (glob)
   *0*80*00:00*old/old (glob)
-  *-----* (glob)
-  \s*172\s+2 files (re)
 
 show an error when a provided pattern matches no files
 

tests/test-subrepo-recursion.t

@@ -321,10 +321,9 b' Test archiving to zip file (unzip output'
 
 (unzip date formating is unstable, we do not care about it and glob it out)
 
-  $ unzip -l ../archive.zip
+  $ unzip -l ../archive.zip | grep -v -- ----- | egrep -v files$
   Archive:  ../archive.zip
     Length [ ]* Date [ ]* Time [ ]* Name (re)
-  [\- ]* (re)
         172  [0-9:\- ]*  .hg_archival.txt (re)
          10  [0-9:\- ]*  .hgsub (re)
          45  [0-9:\- ]*  .hgsubstate (re)
@@ -333,8 +332,6 b' Test archiving to zip file (unzip output'
          45  [0-9:\- ]*  foo/.hgsubstate (re)
           9  [0-9:\- ]*  foo/y.txt (re)
           9  [0-9:\- ]*  foo/bar/z.txt (re)
-  [\- ]* (re)
-        303  [ ]*        8 files (re)
 
 Test archiving a revision that references a subrepo that is not yet
 cloned: