similar patch:
http://cvs.pld-linux.org/cgi-bin/cvsweb.cgi/packages/kdebase/kdebase-konsole-wordseps.patch?annotate=1.2

--- Terminal-0.4.6/terminal/terminal-preferences.c~	2011-01-30 18:09:54.000000000 +0200
+++ Terminal-0.4.6/terminal/terminal-preferences.c	2011-04-13 21:59:03.902238157 +0300
@@ -1293,7 +1293,7 @@
                                    g_param_spec_string ("word-chars",
                                                         "word-chars",
                                                         "WordChars",
-                                                        "-A-Za-z0-9,./?%&#:_~",
+                                                        "-A-Za-z0-9,./?%&#:_~=+",
                                                         EXO_PARAM_READWRITE));
 }