Merge commit '11e05533'

* commit '11e05533':
  Ignore generated file tools/sidxindex.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

.gitignore

@@ -83,6 +83,7 @@
 /tools/pktdumper
 /tools/probetest
 /tools/qt-faststart
+/tools/sidxindex
 /tools/trasher
 /tools/seek_print
 /tools/uncoded_frame