Made DCC deny work with files with spaces

Changes

@@ -2501,3 +2501,6 @@ seen. gmtime warning still there
   'what' will be MODE_ADD if trying to add and MODE_DEL if trying to remove.
 - Added HOOKTYPE_REMOTE_NICKCHANGE (called like: cptr, sptr, newnick).
 - Fixed a bug regarding +f and bounce modes, would cause a crash, reported by Rocko.
+- Made it so the dccdeny system can now check files that contain spaces (suggested by
+  Lamego)
+

src/modules/m_message.c

@@ -228,8 +228,10 @@ DLLFUNC int m_message(aClient *cptr, aClient *sptr, int parc, char *parv[], int
 						continue;
 					}
 					ctcp = &parv[2][10];
-					end = (char *)index(ctcp, ' ');
-
+					if (*ctcp == '"' && *(ctcp+1))
+						end = index(ctcp+1, '"');
+					else
+						end = index(ctcp, ' ');
 					/* check if it was fake.. just pass it along then .. */
 					if (!end || (end < ctcp))
 						goto dcc_was_ok;