updated for version 7.2.419
Problem:    Memory leak in Motif when clicking on "Search Vim Help".
Solution:   Free string returned by XmTextGetString(). (Dominique Pelle)
diff --git a/src/gui_motif.c b/src/gui_motif.c
index 9458e4d..1a7e038 100644
--- a/src/gui_motif.c
+++ b/src/gui_motif.c
@@ -2917,6 +2917,7 @@
 	    *textfield = NUL;
 	else
 	    vim_strncpy(textfield, p, IOSIZE - 1);
+	XtFree((char *)p);
     }
 
     suppress_dialog_mnemonics(dialogform);