Actually make -print-skip print a valid bash script

Previously it was only valid with zsh; seems bash really wants those
curly braces.

cmd/toml-test/main.go

@@ -209,14 +209,14 @@ func main() {
 		fmt.Printf(", %2d skipped", tests.Skipped)
 	}
 	if printSkip && (tests.FailedValid > 0 || tests.FailedInvalid > 0) {
-		fmt.Print("\n\n    #!/usr/bin/env bash\n    skip=(\n")
+		fmt.Print("\n\n    #!/usr/bin/env bash\n    # Also compatible with zsh.\n    skip=(\n")
 		for _, f := range tests.Tests {
 			if f.Failed() {
 				fmt.Printf("        -skip '%s'\n", f.Path)
 			}
 		}
 		fmt.Println("    )")
-		fmt.Print("    toml-test $skip[@] " + strings.Join(cmd, " "))
+		fmt.Print("    toml-test ${skip[@]} " + strings.Join(cmd, " "))
 		if runner.Encoder {
 			fmt.Print(" -encoder")
 		}

cmd/toml-test/usage.go

@@ -99,9 +99,9 @@ Flags:
     -parallel     Number of tests to run in parallel; defaults to GOMAXPROCS,
                   normally the number of cores available.
 
-    -print-skip   Print a small bash script with -skip flag for failing tests;
-                  useful to get a list of "known failures" for CI integrations
-                  and such.
+    -print-skip   Print a small bash/zsh script with -skip flag for failing
+                  tests; useful to get a list of "known failures" for CI
+                  integrations and such.
 
     -int-as-float Treat all integers as floats, rather than integers. This also
                   skips the int64 test as that's outside of the safe float

tests/valid/spec/string-6.json

@@ -1,7 +1,4 @@
 {
-    "regex2": {"type": "string", "value": "I [dw]on't need \\d{2} apples"},
-    "lines": {
-        "type":  "string",
-        "value": "The first newline is\ntrimmed in raw strings.\n   All other whitespace\n   is preserved.\n"
-    }
+    "lines":  {"type": "string", "value": "The first newline is\ntrimmed in raw strings.\n   All other whitespace\n   is preserved.\n"},
+    "regex2": {"type": "string", "value": "I [dw]on't need \\d{2} apples"}
 }