Add go 1.7 compatibility

* Subtests and nested subtests have spaces at the beginning of their
PASS statements. This has been added to the regexp.

parser/parser.go

@@ -40,7 +40,7 @@ type Test struct {
 }
 
 var (
-	regexStatus   = regexp.MustCompile(`^--- (PASS|FAIL|SKIP): (.+) \((\d+\.\d+)(?: seconds|s)\)$`)
+	regexStatus   = regexp.MustCompile(`^\s*--- (PASS|FAIL|SKIP): (.+) \((\d+\.\d+)(?: seconds|s)\)$`)
 	regexCoverage = regexp.MustCompile(`^coverage:\s+(\d+\.\d+)%\s+of\s+statements$`)
 	regexResult   = regexp.MustCompile(`^(ok|FAIL)\s+(.+)\s(\d+\.\d+)s(?:\s+coverage:\s+(\d+\.\d+)%\s+of\s+statements)?$`)
 )