add whitespace around PRId64 constants

Avoid string concatenations without interleaving whitespace.
Some compilers don't like "foo""bar", they only like "foo" "bar".

Requested by: Pau
https://gerrit.osmocom.org/c/osmo-hlr/+/12121/5/src/db_hlr.c#637

Change-Id: Ic7a81114f9afbefcbd62d434720854cfdd4a2dd9
diff --git a/src/ctrl.c b/src/ctrl.c
index 8ae9d7c..05a0107 100644
--- a/src/ctrl.c
+++ b/src/ctrl.c
@@ -132,7 +132,7 @@
 			      struct hlr_subscriber *subscr)
 {
 	ctrl_cmd_reply_printf(cmd,
-		"\nid\t%"PRIu64
+		"\nid\t%" PRIu64
 		FMT_S
 		FMT_S
 		FMT_BOOL
@@ -189,7 +189,7 @@
 	ctrl_cmd_reply_printf(cmd,
 		"\naud3g.%s\t%s"
 		"\naud3g.ind_bitlen\t%u"
-		"\naud3g.sqn\t%"PRIu64
+		"\naud3g.sqn\t%" PRIu64
 		,
 		aud->u.umts.opc_is_op? "op" : "opc",
 		hexdump_buf(aud->u.umts.opc),