MINOR: proxy: rename PR_CAP_LUA to PR_CAP_INT

This patch renames the proxy capability "LUA" to "INT" so it could be
used for any internal proxy.

Every proxy that are not user defined should use this flag.
diff --git a/include/haproxy/proxy-t.h b/include/haproxy/proxy-t.h
index aa3de2c..ba6a5fa 100644
--- a/include/haproxy/proxy-t.h
+++ b/include/haproxy/proxy-t.h
@@ -69,7 +69,7 @@
 #define PR_CAP_BE      0x0002
 #define PR_CAP_LISTEN  (PR_CAP_FE|PR_CAP_BE)
 #define PR_CAP_DEF     0x0004           /* defaults section */
-#define PR_CAP_LUA     0x0008           /* internal proxy used by lua engine */
+#define PR_CAP_INT     0x0008           /* internal proxy (used by lua engine) */
 #define PR_CAP_LB      0x0010           /* load-balancing capabilities, i.e. listen/frontend/backend proxies */
 
 /* bits for proxy->options */
diff --git a/src/hlua.c b/src/hlua.c
index f8657c5..6a9073e 100644
--- a/src/hlua.c
+++ b/src/hlua.c
@@ -9221,7 +9221,7 @@
 	hlua_states[1] = hlua_init_state(1);
 
 	/* Proxy and server configuration initialisation. */
-	socket_proxy = alloc_new_proxy("LUA-SOCKET", PR_CAP_FE|PR_CAP_BE|PR_CAP_LUA, &errmsg);
+	socket_proxy = alloc_new_proxy("LUA-SOCKET", PR_CAP_FE|PR_CAP_BE|PR_CAP_INT, &errmsg);
 	if (!socket_proxy) {
 		fprintf(stderr, "Lua init: %s\n", errmsg);
 		exit(1);
diff --git a/src/proxy.c b/src/proxy.c
index f698843..10762e2 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -1345,13 +1345,13 @@
 {
 	defproxy->mode = PR_MODE_TCP;
 	defproxy->disabled = 0;
-	if (!(defproxy->cap & PR_CAP_LUA)) {
+	if (!(defproxy->cap & PR_CAP_INT)) {
 		defproxy->maxconn = cfg_maxpconn;
 		defproxy->conn_retries = CONN_RETRIES;
 	}
 	defproxy->redispatch_after = 0;
 	defproxy->options = PR_O_REUSE_SAFE;
-	if (defproxy->cap & PR_CAP_LUA)
+	if (defproxy->cap & PR_CAP_INT)
 		defproxy->options2 |= PR_O2_INDEPSTR;
 	defproxy->max_out_conns = MAX_SRV_LIST;
 
@@ -1384,7 +1384,7 @@
 	quic_transport_params_init(&defproxy->defsrv.quic_params, 0);
 #endif
 
-	if (defproxy->cap & PR_CAP_LUA)
+	if (defproxy->cap & PR_CAP_INT)
 		defproxy->timeout.connect = 5000;
 }
 
@@ -1481,7 +1481,7 @@
 	curproxy->id = strdup(name);
 	curproxy->cap = cap;
 
-	if (!(cap & PR_CAP_LUA))
+	if (!(cap & PR_CAP_INT))
 		proxy_store_name(curproxy);
 
  done: