Merge branch 'fix-pkgrel-pkgver-match' into 'master'

fix(pkgbuild.sh): Use grep -Fx to check for pkgrel and pkgver declaration

Closes #242

See merge request archlinux/devtools!283

src/lib/util/pkgbuild.sh

@@ -26,10 +26,10 @@ pkgbuild_set_pkgver() {
 		warning 'setting pkgver variable has no effect if the PKGBUILD has a pkgver() function'
 	fi
 
-	if ! grep --fixed-strings --line-regexp --quiet --max-count=1 "pkgver=${pkgver}" PKGBUILD; then
+	if ! grep -Fx --quiet --max-count=1 "pkgver=${pkgver}" PKGBUILD; then
 		die "Non-standard pkgver declaration"
 	fi
-	sed "s|^pkgver=${pkgver}$|pkgver=${new_pkgver}|g" --in-place PKGBUILD
+	sed --regexp-extended "s|^(pkgver=)${pkgver}$|\1${new_pkgver}|g" --in-place PKGBUILD
 }
 
 # set the pkgrel variable in a PKGBUILD
@@ -38,10 +38,10 @@ pkgbuild_set_pkgrel() {
 	local new_pkgrel=$1
 	local pkgrel=${pkgrel}
 
-	if ! grep --fixed-strings --line-regexp --quiet --max-count=1 "pkgrel=${pkgrel}" PKGBUILD; then
+	if ! grep -Fx --quiet --max-count=1 "pkgrel=${pkgrel}" PKGBUILD; then
 		die "Non-standard pkgrel declaration"
 	fi
-	sed "s|^pkgrel=${pkgrel}$|pkgrel=${new_pkgrel}|g" --in-place PKGBUILD
+	sed --regexp-extended "s|^(pkgrel=)${pkgrel}$|\1${new_pkgrel}|g" --in-place PKGBUILD
 }
 
 pkgbuild_update_checksums() {