Merge branch '2.4.2' into lexer2

ChangeLog

@@ -8,6 +8,8 @@
           (thanks to Renato Alves).
 - Eliminated some code that is not UTF8-safe.
 - Removed pthreads linkage.
+- Closed dangling pipes in execute (), resolving problems when a hook script
+  forks (thanks to Jens Erat).
 
 ------ current release ---------------------------
 

src/Lexer2.cpp

@@ -770,7 +770,8 @@ bool Lexer2::isPath (std::string& token, Lexer2::Type& type)
     else
       break;
 
-    if (! isWhitespace (_text[marker]) &&
+    if (_text[marker] &&
+        ! isWhitespace (_text[marker]) &&
         _text[marker] != '/')
     {
       utf8_next_char (_text, marker);