Add script to update references of rgbasm tests

Update test references.

Signed-off-by: AntonioND <antonio_nd@outlook.com>

test/asm/test.sh

@@ -4,3 +4,5 @@ for i in *.asm; do
 	../../rgbasm $i >$fname 2>&1
 	diff -u $fname ${i%.asm}.out
 done
+
+exit 0

test/asm/undefined-dot.out

@@ -1,3 +1,3 @@
 ERROR: undefined-dot.asm(3):
 	'.' not defined
-../../rgbasm: Assembly aborted in pass 2 (1 errors)!
+rgbasm:error:Assembly aborted in pass 2 (1 errors)!

test/asm/update-refs.sh

@@ -0,0 +1,8 @@
+fname=$(mktemp)
+
+for i in *.asm; do
+	../../rgbasm $i >$fname 2>&1
+	mv -f $fname ${i%.asm}.out
+done
+
+exit 0