riched20: Fixed typo in EM_FINDTEXT

[Lei Zhang]

The thread regarding this patch is here:
http://www.winehq.org/pipermail/wine-devel/2006-February/045106.html

In the previous incarnation of this patch I forgot to do "diff -u"
---

ChangeLog:
	Make sure pCurItem is not NULL, both as a sanity check and to be
	consistent with the code in the search down block.

---

 editor.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

Index: dlls/riched20/editor.c
===================================================================
RCS file: /home/wine/wine/dlls/riched20/editor.c,v
retrieving revision 1.101
diff -u -r1.101 editor.c
--- dlls/riched20/editor.c	27 Feb 2006 15:35:12 -0000	1.101
+++ dlls/riched20/editor.c	1 Mar 2006 05:24:36 -0000
@@ -872,7 +872,7 @@
       int nCurEnd = nEnd;
       int nMatched = 0;
       
-      while (ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
+      while (pCurItem && ME_CharCompare(pCurItem->member.run.strText->szData[nCurEnd - nMatched - 1], text[nLen - nMatched - 1], (flags & FR_MATCHCASE)))
       {
         nMatched++;
         if (nMatched == nLen)