Do not source catalyst.conf as it's not bash syntax

* non-bash formatted lines are executed; results in several "command not found" errors
* instead, parse the file for the specific var

[this still leaves the doublequotes " around the value- dilfridge]

Signed-off-by: Nic Boet <nic@boet.cc>
Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>

tools/catalyst-auto

@@ -119,8 +119,8 @@ post_build() {
 
 catalyst_var() {
 	# Extract a setting from the catalyst.conf.
-	local var=$1
-	(. "${CATALYST_CONFIG}"; echo "${!var}")
+	local var=$(grep --color=never -Po "^${1}\s*=\s*\K.*" "${CATALYST_CONFIG}" || true)
+	[[ -z ${var} ]] || echo "${var}"
 }
 
 trigger_post_build() {