logger/glog: fix go vet issues

logging.printf triggered a format string warning. Silence it
by renaming the function.

logger/glog/glog.go

@@ -698,7 +698,7 @@ func (l *loggingT) printDepth(s severity, depth int, args ...interface{}) {
 	l.output(s, buf, file, line, false)
 }
 
-func (l *loggingT) printf(s severity, format string, args ...interface{}) {
+func (l *loggingT) printfmt(s severity, format string, args ...interface{}) {
 	buf, file, line := l.header(s, 0)
 	fmt.Fprintf(buf, format, args...)
 	if buf.Bytes()[buf.Len()-1] != '\n' {
@@ -1088,7 +1088,7 @@ func (v Verbose) Infoln(args ...interface{}) {
 // See the documentation of V for usage.
 func (v Verbose) Infof(format string, args ...interface{}) {
 	if v {
-		logging.printf(infoLog, format, args...)
+		logging.printfmt(infoLog, format, args...)
 	}
 }
 
@@ -1107,13 +1107,13 @@ func InfoDepth(depth int, args ...interface{}) {
 // Infoln logs to the INFO log.
 // Arguments are handled in the manner of fmt.Println; a newline is appended if missing.
 func Infoln(args ...interface{}) {
-	logging.println(infoLog, args...)
+	logging.print(infoLog, args...)
 }
 
 // Infof logs to the INFO log.
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
 func Infof(format string, args ...interface{}) {
-	logging.printf(infoLog, format, args...)
+	logging.printfmt(infoLog, format, args...)
 }
 
 // Warning logs to the WARNING and INFO logs.
@@ -1137,7 +1137,7 @@ func Warningln(args ...interface{}) {
 // Warningf logs to the WARNING and INFO logs.
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
 func Warningf(format string, args ...interface{}) {
-	logging.printf(warningLog, format, args...)
+	logging.printfmt(warningLog, format, args...)
 }
 
 // Error logs to the ERROR, WARNING, and INFO logs.
@@ -1161,7 +1161,7 @@ func Errorln(args ...interface{}) {
 // Errorf logs to the ERROR, WARNING, and INFO logs.
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
 func Errorf(format string, args ...interface{}) {
-	logging.printf(errorLog, format, args...)
+	logging.printfmt(errorLog, format, args...)
 }
 
 // Fatal logs to the FATAL, ERROR, WARNING, and INFO logs,
@@ -1188,7 +1188,7 @@ func Fatalln(args ...interface{}) {
 // including a stack trace of all running goroutines, then calls os.Exit(255).
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
 func Fatalf(format string, args ...interface{}) {
-	logging.printf(fatalLog, format, args...)
+	logging.printfmt(fatalLog, format, args...)
 }
 
 // fatalNoStacks is non-zero if we are to exit without dumping goroutine stacks.
@@ -1219,5 +1219,5 @@ func Exitln(args ...interface{}) {
 // Arguments are handled in the manner of fmt.Printf; a newline is appended if missing.
 func Exitf(format string, args ...interface{}) {
 	atomic.StoreUint32(&fatalNoStacks, 1)
-	logging.printf(fatalLog, format, args...)
+	logging.printfmt(fatalLog, format, args...)
 }

logger/glog/glog_test.go

@@ -300,7 +300,7 @@ func TestCompileModulePattern(t *testing.T) {
 	for _, test := range patternTests {
 		re, err := compileModulePattern(test.input)
 		if err != nil {
-			t.Fatalf("%s: %v", err)
+			t.Fatalf("%s: %v", test.input, err)
 		}
 		if re.String() != test.want {
 			t.Errorf("mismatch for %q: got %q, want %q", test.input, re.String(), test.want)