[PATCH] Fix bashism in bzgrep

[Mark Wielaard <mark@klomp.org>]

Hi,

bzip2 lost its domain and got a new home at https://sourceware.org/bzip2/
It also didn't see a release for a very long time. Causing various patches
used by distros to not have been integrated upstream. We are trying to
collect them all and do a new release.

The following patch comes from openSUSE.
Please let us know if we missed some others.

Thanks,

Mark

bzgrep uses ${var//} which is a bashism.
Replace by calling sed so other POSIX shells work.

Patch from openSUSE by Led <ledest@gmail.com>
---
 bzgrep | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/bzgrep b/bzgrep
index 9a04b83..5080afd 100644
--- a/bzgrep
+++ b/bzgrep
@@ -63,9 +63,7 @@ for i do
     bzip2 -cdfq "$i" | $grep $opt "$pat"
     r=$?
   else
-    j=${i//\\/\\\\}
-    j=${j//|/\\|}
-    j=${j//&/\\&}
+    j=$(echo "$i" | sed 's/\\/&&/g;s/|/\\&/g;s/&/\\&/g')
     j=`printf "%s" "$j" | tr '\n' ' '`
     bzip2 -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${j}:|"
     r=$?
-- 
2.20.1