procfs:add missing ',' to end of line

Signed-off-by: anjiahao <[email protected]>

fs/procfs/fs_procfsmeminfo.c

@@ -395,7 +395,7 @@ static ssize_t meminfo_read(FAR struct file *filep, FAR char *buffer,
                                    (unsigned long)progmem.fordblks,
                                    (unsigned long)progmem.mxordblk,
                                    (unsigned long)progmem.aordblks,
-                                   (unsigned long)progmem.ordblks
+                                   (unsigned long)progmem.ordblks,
                                    "Prog");
       copysize   = procfs_memcpy(procfile->line, linesize, buffer, buflen,
                                  &offset);