unify err functions across scripts

include/err.sh

this new handling also does mundane things,
such as tell you what script b0rked

Signed-off-by: Leah Rowe <leah@libreboot.org>

resources/scripts/build/release/src

@@ -21,6 +21,8 @@
 [ "x${DEBUG+set}" = 'xset' ] && set -v
 set -u -e
 
+. "include/err.sh"
+
 projectname="$(cat projectname)"
 
 trees_fetch_list="coreboot u-boot"
@@ -161,9 +163,4 @@ create_release_archive()
 	)
 }
 
-err()
-{
-	printf "%s: %s\n" $0 $1
-}
-
 main $@