common: use stdbool in threads.c, log.c so cmdlib isn't needed

The only thing used by log.c was the qboolean definition, so just use
stdbool internally instead.

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>

common/log.c

@@ -21,15 +21,15 @@
  * common/log.c
  */
 
+#include <stdbool.h>
 #include <stdarg.h>
 #include <stdio.h>
 
 #include <common/log.h>
-#include <common/cmdlib.h>
 #include <common/threads.h>
 
 static FILE *logfile;
-static qboolean log_ok;
+static _Bool log_ok;
 
 void
 init_log(const char *filename)

common/threads.c

@@ -1,13 +1,15 @@
 /* common/threads.c */
 
+#include <stdbool.h>
 #include <stdint.h>
+#include <stdlib.h>
 
 #include <common/cmdlib.h>
 #include <common/log.h>
 #include <common/threads.h>
 
 /* Make the locks no-ops if we aren't running threads */
-static qboolean threads_active = false;
+static _Bool threads_active = false;
 
 static int dispatch;
 static int workcount;

include/common/log.h

@@ -28,7 +28,6 @@
 #define __COMMON_LOG_H__
 
 #include <stdio.h>
-#include <common/cmdlib.h>
 
 void init_log(const char *filename);
 void close_log();

include/common/threads.h

@@ -3,8 +3,6 @@
 #ifndef __COMMON_THREADS_H__
 #define __COMMON_THREADS_H__
 
-#include <common/cmdlib.h>
-
 extern int numthreads;
 
 int GetDefaultThreads(void);