[gnome-mud] msp: Fix broken parsing due to marshalling removal

[Mart Raudsepp <mraudsepp src gnome org>]

commit fe48294597b98b9fa5985f381495dc13750ed9f6
Author: Steven Joruk <steven joruk com>
Date:   Fri Aug 4 10:59:13 2017 +0100

    msp: Fix broken parsing due to marshalling removal
    
    See merge request GNOME/gnome-mud!2

 src/handlers/mud-telnet-msp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/handlers/mud-telnet-msp.c b/src/handlers/mud-telnet-msp.c
index da98019..b79f431 100644
--- a/src/handlers/mud-telnet-msp.c
+++ b/src/handlers/mud-telnet-msp.c
@@ -352,8 +352,8 @@ mud_telnet_msp_parser_clear(MudTelnetMsp *self)
 void
 mud_telnet_msp_parse(MudTelnetMsp *self, MudLineBufferLine *line)
 {
-    guint len = strlen(line->line);
-    gchar *buf = line->line;
+    gsize len = line->line->len;
+    gchar *buf = line->line->str;
 
     g_return_if_fail(MUD_IS_TELNET_MSP(self));