X-Git-Url: https://git.distorted.org.uk/~mdw/cfd/blobdiff_plain/87eaf275d4957b93583b9dcfb71d06f798533aca..de8440cea07259aadd308a01cf5f3247647514b7:/confsubst.in

diff --git a/confsubst.in b/confsubst.in
index 285e031..f9ba37b 100755
--- a/confsubst.in
+++ b/confsubst.in
@@ -78,8 +78,7 @@ for fixup; do
     *?=*) ;;
     *) echo >&2 "$0: bad substitution: $fixup"; exit 1 ;;
   esac
-  tag=$(echo "$fixup" | sed 's/=.*$//') && \
-  value=$(echo "$fixup" | sed 's/^[^=]*=//') && \
+  tag=${fixup%%=*} value=${fixup#*=}
   subst="$subst s@$tag@$valueg;"
 done