all: fix some vet-caught formatting errors, mostly but not only in tests

Could go in 1.5, although not critical.
See also #12107

Change-Id: I7f1608b58581d21df4db58f0db654fef79e33a90
Reviewed-on: https://go-review.googlesource.com/13481
Reviewed-by: Dave Cheney <dave@cheney.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/internal/trace/parser_test.go b/src/internal/trace/parser_test.go
index 0eeb3e600e..fecefc4053 100644
--- a/src/internal/trace/parser_test.go
+++ b/src/internal/trace/parser_test.go
@@ -24,7 +24,7 @@ func TestCorruptedInputs(t *testing.T) {
 	for _, data := range tests {
 		events, err := Parse(strings.NewReader(data))
 		if err == nil || events != nil {
-			t.Fatalf("no error on input: %q\n", t)
+			t.Fatalf("no error on input: %q\n", data)
 		}
 	}
 }