move gofmt into a separate script

gofmt.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+RETVAL=0
+
+for file in $(find . -name '*.go' -not -path './vendor/*')
+do
+    if [ -n "$(gofmt -l $file)" ]
+    then
+        echo "$file does not conform to gofmt rules. Run: gofmt -s -w $file" >&2
+        RETVAL=1
+    fi
+done
+
+exit $RETVAL

test.sh

@@ -4,17 +4,4 @@ set -eux
 
 export PACKER_ACC=1
 
-RETVAL=0
-
-for file in $(find ./ -type f ! -path "./vendor/*" -name '*.go' -print)
-do
-    if [[ -n "$(gofmt -l "$file")" ]]
-    then
-        echo -e "$file does not conform to gofmt rules. Run: gofmt -s -w $file"
-        RETVAL=1
-    fi
-done
-
-exit $RETVAL
-
 go test -v -count 1 -timeout 20m ./driver ./iso ./clone