Fix "not not" in Python documentation

I noticed a "not not" in the Python documentation where just "not" was
meant.  This patch fixes the error.

diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi
index b65991bbad0c5ff72457dbbbf5fc51f03d837bab..3a35c5c2ccc2f95d52e472d1afa826f33fa3891d 100644 (file)
--- a/gdb/doc/python.texi
+++ b/gdb/doc/python.texi
@@ -2846,7 +2846,7 @@ frame registers when @value{GDBN} core asks for them.
 
 An unwinder should do as little work as possible.  Some otherwise
 innocuous operations can cause problems (even crashes, as this code is
-not not well-hardened yet).  For example, making an inferior call from
+not well-hardened yet).  For example, making an inferior call from
 an unwinder is unadvisable, as an inferior call will reset
 @value{GDBN}'s stack unwinding process, potentially causing re-entrant
 unwinding.