[packages] bash: import upstream 4.2 patch series

git-svn-id: svn://svn.openwrt.org/openwrt/packages@31746 3c298f89-4303-0410-b956-a3cf2f4a3e73

utils/bash/patches/104-upstream-bash42-004.patch

@@ -0,0 +1,40 @@
+			     BASH PATCH REPORT
+			     =================
+
+Bash-Release:	4.2
+Patch-ID:	bash42-004
+
+Bug-Reported-by:	Mike Frysinger <vapier@gentoo.org>
+Bug-Reference-ID:	<201102182106.17834.vapier@gentoo.org>
+Bug-Reference-URL:	http://lists.gnu.org/archive/html/bug-bash/2011-02/msg00222.html
+
+Bug-Description:
+
+When used in contexts where word splitting and quote removal were not
+performed, such as pattern removal or pattern substitution, empty strings
+(either literal or resulting from quoted variables that were unset or
+null) were not matched correctly, resulting in failure.
+
+Patch (apply with `patch -p0'):
+
+--- a/subst.c
++++ b/subst.c
+@@ -3373,7 +3373,7 @@ expand_string_for_rhs (string, quoted, d
+   if (string == 0 || *string == '\0')
+     return (WORD_LIST *)NULL;
+ 
+-  td.flags = 0;
++  td.flags = W_NOSPLIT2;		/* no splitting, remove "" and '' */
+   td.word = string;
+   tresult = call_expand_word_internal (&td, quoted, 1, dollar_at_p, has_dollar_at);
+   return (tresult);
+--- a/patchlevel.h
++++ b/patchlevel.h
+@@ -25,6 +25,6 @@
+    regexp `^#define[ 	]*PATCHLEVEL', since that's what support/mkversion.sh
+    looks for to find the patch level (for the sccs version string). */
+ 
+-#define PATCHLEVEL 3
++#define PATCHLEVEL 4
+ 
+ #endif /* _PATCHLEVEL_H_ */