tests: fix check-code breakage

tests/test-generaldelta.t

@@ -1,23 +1,23
 Check whether size of generaldelta revlog is not bigger than its
 regular equivalent. Test would fail if generaldelta was naive
 implementation of parentdelta: third manifest revision would be fully
 inserted due to big distance from its paren revision (zero).
 
   $ hg init repo
   $ cd repo
   $ echo foo > foo
   $ echo bar > bar
   $ hg commit -q -Am boo
   $ hg clone --pull . ../gdrepo -q --config format.generaldelta=yes
   $ for r in 1 2 3; do
   >   echo $r > foo
   >   hg commit -q -m $r
   >   hg up -q -r 0
   >   hg pull . -q -r $r -R ../gdrepo
   > done
   $ cd ..
   $ regsize=`du -s -b repo/.hg/store/00manifest.i | cut -f 1`
   $ gdsize=`du -s -b gdrepo/.hg/store/00manifest.i | cut -f 1`
-  $ if ((regsize < gdsize)); then
+  $ if [ $regsize -gt $gdsize ]; then
   >   echo 'generaldelta increased size of a revlog!'
   > fi