irc: do not strip trailing spaces from incoming IRC messages

CHANGELOG.md

@@ -15,6 +15,7 @@
 ### Fixed
 
 - core, plugins: fix integer overflow in loops ([#2178](https://github.com/weechat/weechat/issues/2178))
+- irc: do not strip trailing spaces from incoming IRC messages
 - relay/api: fix empty nicklist in remote buffers after connection or reconnection
 - lua: fix compilation on Fedora with Lua < 5.2.0 ([#2173](https://github.com/weechat/weechat/issues/2173), [#2174](https://github.com/weechat/weechat/issues/2174))
 - core: fix build on Android ([#2180](https://github.com/weechat/weechat/issues/2180))

src/plugins/irc/irc-mode.c

@@ -672,6 +672,10 @@ irc_mode_user_set (struct t_irc_server *server, const char *modes,
             server->nick_modes = NULL;
         }
     }
+    while (modes && (modes[0] == ' '))
+    {
+        modes++;
+    }
     set_flag = '+';
     end = 0;
     while (modes && modes[0])

src/plugins/irc/irc-protocol.h

@@ -27,11 +27,9 @@
     irc_protocol_cb_##__command (                                       \
         struct t_irc_protocol_ctxt *ctxt)
 
-#define IRCB(__message, __decode_color, __keep_trailing_spaces,         \
-             __func_cb)                                                 \
+#define IRCB(__message, __decode_color, __func_cb)                      \
     { #__message,                                                       \
       __decode_color,                                                   \
-      __keep_trailing_spaces,                                           \
       &irc_protocol_cb_##__func_cb }
 
 #define IRC_PROTOCOL_MIN_PARAMS(__min_params)                           \
@@ -83,7 +81,6 @@ struct t_irc_protocol_msg
 {
     char *name;                     /* IRC message name                      */
     int decode_color;               /* decode color before calling function  */
-    int keep_trailing_spaces;       /* keep trailing spaces in message       */
     t_irc_recv_func *recv_function; /* function called when msg is received  */
 };