updated for version 7.3.637
Problem:    Cannot catch the error caused by a foldopen when there is no fold.
            (ZyX, Issue 48)
Solution:   Do not break out of the loop early when inside try/catch.
            (Christian Brabandt) Except when there is a syntax error.
diff --git a/src/globals.h b/src/globals.h
index 81cdabb..41eb885 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -183,6 +183,8 @@
 #endif
 EXTERN int	did_emsg;		    /* set by emsg() when the message
 					       is displayed or thrown */
+EXTERN int	did_emsg_syntax;	    /* did_emsg set because of a
+					       syntax error */
 EXTERN int	called_emsg;		    /* always set by emsg() */
 EXTERN int	ex_exitval INIT(= 0);	    /* exit value for ex mode */
 EXTERN int	emsg_on_display INIT(= FALSE);	/* there is an error message */