Fix exit status from 'diff'.
commit2e7ae209c129937e501a9f9054eb07ce77a6f0a0
authorNeilBrown <neil@brown.name>
Mon, 7 Sep 2020 06:34:10 +0000 (7 16:34 +1000)
committerNeilBrown <neil@brown.name>
Mon, 7 Sep 2020 06:34:10 +0000 (7 16:34 +1000)
tree435b633594df8955ee4f5c384dde6fbb904a76cb
parent6cb79244105be99f3f9e24e89b9a594211b594a9
Fix exit status from 'diff'.

Exit status of 'diff' count the number of differences, then take low
bits.
This is nonsense.  Make it 1 if there are differences.

Signed-off-by: NeilBrown <neil@brown.name>
wiggle.c