tools/check-includes.sh: test that c files include their .h files.

This is best-practice (to ensure prototypes match up), but there were a
few places we didn't (at least, directly).  Make it a requirement,
either of form "foo.h" or <dir/foo.h>.

The noise is the change to our print templates.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

connectd/connectd_gossipd_wiregen.c

@@ -161,4 +161,4 @@ bool fromwire_gossipd_get_addrs_reply(const tal_t *ctx, const void *p, struct wi
 		fromwire_wireaddr(&cursor, &plen, *addrs + i);
 	return cursor != NULL;
 }
-// SHA256STAMP:69dd930932c97655f56c92bd396446582b149e27ca26e0dcd3a29005ea078158
+// SHA256STAMP:a03f3546c6a3dc0ee7055ba912fffd6acf9dc86bb9dc4472ecfc240582709481

connectd/connectd_gossipd_wiregen.h

@@ -54,4 +54,4 @@ bool fromwire_gossipd_get_addrs_reply(const tal_t *ctx, const void *p, struct wi
 
 
 #endif /* LIGHTNING_CONNECTD_CONNECTD_GOSSIPD_WIREGEN_H */
-// SHA256STAMP:69dd930932c97655f56c92bd396446582b149e27ca26e0dcd3a29005ea078158
+// SHA256STAMP:a03f3546c6a3dc0ee7055ba912fffd6acf9dc86bb9dc4472ecfc240582709481

connectd/connectd_wiregen.c

@@ -443,4 +443,4 @@ bool fromwire_connectd_dev_memleak_reply(const void *p, bool *leak)
  	*leak = fromwire_bool(&cursor, &plen);
 	return cursor != NULL;
 }
-// SHA256STAMP:3b0f7e87bf73dc1fd4f7181f61fc648f2fc0c4aad946edc9d9c80d90c99e9bcf
+// SHA256STAMP:f10d8c579846bdad3caee38596f5b3a89af7f0be89ab569175045e9375ada5d0

connectd/connectd_wiregen.h

@@ -110,4 +110,4 @@ bool fromwire_connectd_dev_memleak_reply(const void *p, bool *leak);
 
 
 #endif /* LIGHTNING_CONNECTD_CONNECTD_WIREGEN_H */
-// SHA256STAMP:3b0f7e87bf73dc1fd4f7181f61fc648f2fc0c4aad946edc9d9c80d90c99e9bcf
+// SHA256STAMP:f10d8c579846bdad3caee38596f5b3a89af7f0be89ab569175045e9375ada5d0