logging cleanups

* Moved all logging-related stuff into log.c
(and not myfprintf.c)

* ISO C90-compliant strftime usage:
%e and %R replaced with %d and %H:%M respectively

* Got rid of variadic macros since some old-school compilers
don't like them

* compiling with -DNDEBUG disables the DEBUG() macro

git-svn-id: https://svn.musicpd.org/mpd/trunk@4512 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/decode.c

@@ -208,7 +208,7 @@ static int decodeSeek(PlayerControl * pc, DecoderControl * dc,
 
 #define processDecodeInput() \
         if(pc->cycleLogFiles) { \
-                myfprintfCloseAndOpenLogFile(); \
+                cycle_log_files(); \
                 pc->cycleLogFiles = 0; \
         } \
 	if(pc->lockQueue) { \
@@ -415,7 +415,7 @@ static int decoderInit(PlayerControl * pc, OutputBuffer * cb,
 
 		while (1) {
 			if (dc->cycleLogFiles) {
-				myfprintfCloseAndOpenLogFile();
+				cycle_log_files();
 				dc->cycleLogFiles = 0;
 			} else if (dc->start || dc->seek)
 				decodeStart(pc, cb, dc);