use stdlib.h instead of malloc.h

src/fscrawl.c

@@ -9,7 +9,7 @@
  */
 #include <unistd.h>
 #include <string.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include <stdio.h>
 #include <errno.h>
 #include <dirent.h>

src/rbtree.c

@@ -10,7 +10,7 @@
  *   Based on the work of Julienne Walker's rbtree implementation
  *   http://www.eternallyconfuzzled.com/tuts/datastructures/jsw_tut_rbtree.aspx
  */
-#include <malloc.h>
+#include <stdlib.h>
 #include <string.h>
 #include "xalloc.h"
 #include "rbtree.h"

test/t_path.c

@@ -1,5 +1,4 @@
 
-#include <malloc.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include "unit.h"

test/t_queue.c

@@ -1,6 +1,6 @@
 
 #include <assert.h>
-#include <stdio.h>
+#include <stdlib.h>
 #include "../src/queue.h"
 
 int main() {

test/t_strbuf.c

@@ -2,7 +2,7 @@
 #include <assert.h>
 #include <stdio.h>
 #include <string.h>
-#include <malloc.h>
+#include <stdlib.h>
 #include "../src/strbuf.h"
 
 typedef unsigned int uint;

test/unit.c

@@ -1,6 +1,6 @@
 
 #include "unit.h"
-#include <malloc.h>
+#include <stdlib.h>
 #include <time.h>
 
 static inline char ranchr() {