Forbid b{copy,zero,cmp}(). Don't include <strings.h> for <string.h>

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12996

cmd/zed/agents/fmd_api.c

@@ -38,7 +38,7 @@
 #include <sys/fm/protocol.h>
 #include <uuid/uuid.h>
 #include <signal.h>
-#include <strings.h>
+#include <string.h>
 #include <time.h>
 
 #include "fmd_api.h"

cmd/zed/agents/fmd_serd.c

@@ -29,7 +29,7 @@
 #include <assert.h>
 #include <stddef.h>
 #include <stdlib.h>
-#include <strings.h>
+#include <string.h>
 #include <sys/list.h>
 #include <sys/time.h>
 

cmd/zed/agents/zfs_diagnosis.c

@@ -27,7 +27,6 @@
 
 #include <stddef.h>
 #include <string.h>
-#include <strings.h>
 #include <libuutil.h>
 #include <libzfs.h>
 #include <sys/types.h>