Add src/_gdbinit to .gitignore.

 .gitignore: Add back src/_gdbinit, which is a temporary file
 created by the MS-DOS build.

.gitignore

@@ -91,6 +91,8 @@ deps/
 # Logs and temporaries.
 *.log
 *.tmp
+# Created by MS-DOS builds
+src/_gdbinit
 
 # Time stamps.
 stamp_BLD

ChangeLog

+2014-11-21  Eli Zaretskii  <eliz@gnu.org>
+
+	* .gitignore: Add back src/_gdbinit, which is a temporary file
+	created by the MS-DOS build.
+
 2014-11-20  Paul Eggert  <eggert@cs.ucla.edu>
 
 	Add a.out to .gitignore.