bk commit into 5.0 tree (msvensson:1.2614) BUG#35986

[msvensson]

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ChangeSet@stripped, 2008-05-02 12:49:31+02:00, msvensson@stripped +1 -0
  Bug#35986 valgrind warning in DbugParse for empty string in SET GLOBAL DEBUG=""
   - Code in DbugParse was reading from beyond end of the control string

  dbug/dbug.c@stripped, 2008-05-02 12:49:29+02:00, msvensson@stripped +1 -1
    Don't try to parse control strings that hasn't got any tokens
    or is zero size

diff -Nrup a/dbug/dbug.c b/dbug/dbug.c
--- a/dbug/dbug.c	2008-03-28 19:02:22 +01:00
+++ b/dbug/dbug.c	2008-05-02 12:49:29 +02:00
@@ -493,7 +493,7 @@ static void DbugParse(CODE_STATE *cs, co
   }
 
   end= DbugStrTok(control);
-  while (1)
+  while (control < end)
   {
     int c, sign= (*control == '+') ? 1 : (*control == '-') ? -1 : 0;
     if (sign) control++;