At tamsky's suggestion, using regex to match golden, fix #54

Author: sparkprime

test_suite/error.import_folder.jsonnet.golden

@@ -1,2 +1,2 @@
-RUNTIME ERROR: Couldn't open import "lib": basic_filebuf::underflow error reading the file
+RUNTIME ERROR: Couldn't open import "lib": .*
 	error.import_folder.jsonnet:17:1-12	

test_suite/run_tests.sh

@@ -33,7 +33,7 @@ for TEST in *.jsonnet ; do
         echo "FAIL (exit code): $TEST"
         echo "Output:"
         echo "$OUTPUT"
-    elif [ "$OUTPUT" != "$GOLDEN" ] ; then
+    elif [[ ! "$OUTPUT" =~ $GOLDEN ]] ; then
         FAILED=$((FAILED + 1))
         echo "FAIL (output): $TEST"
         echo "Output:"

test_suite/unparse.jsonnet.golden

@@ -1,11 +1,11 @@
-{
+\{
    "false": false,
    "neg_integer": -1029301293,
    "null": null,
    "number": 0.33333333333333331,
    "pos_integer": 13212381932,
    "small_number": 1e-14,
-   "string": "foo\n bar\n\n\"bar\u0005\"\t P\b\f\r\\",
+   "string": "foo\\n bar\\n\\n\\"bar\\u0005\\"\\t P\\b\\f\\r\\\\",
    "true": true,
    "zero": 0
-}
+\}