Adding more temporary files to gitignore

Trivial addition of temporary files to gitignore, for cleanliness.

Signed-off-by: Josh Lehan <krellan@google.com>
Change-Id: Ib3153f9d9a01c24e1ac60b1dfe3218dfca4062f6
diff --git a/.gitignore b/.gitignore
index 346cf92..964073a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,6 +14,7 @@
 Makefile
 Makefile.in
 configure
+configure~
 .deps
 .libs
 aclocal.m4
@@ -23,12 +24,14 @@
 /aminclude_static.am
 compile
 config.guess
+config.guess~
 config.h
 config.h.in
 config.h.in~
 config.log
 config.status
 config.sub
+config.sub~
 depcomp
 install-sh
 ltmain.sh