kcmp: Beautify kcmp-ids.h

 - aling memebers
 - use pid_t type for PIDs
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>

criu/include/kcmp-ids.h

@@ -2,12 +2,13 @@
 #define __CR_KCMP_IDS_H__
 
 #include <stdint.h>
+#include <sys/types.h>
 
 #include "kcmp.h"
 
 struct kid_tree {
 	struct rb_root		root;
-	unsigned kcmp_type;
+	unsigned int		kcmp_type;
 	unsigned long		subid;
 
 };
@@ -20,9 +21,9 @@ struct kid_tree {
 	}
 
 struct kid_elem {
-	int pid;
-	unsigned genid;
-	unsigned idx;
+	pid_t		pid;
+	unsigned int	genid;
+	unsigned int	idx;
 };
 
 extern uint32_t kid_generate_gen(struct kid_tree *tree,