Config: terminate version number string

Reported-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

Config.in

@@ -8,7 +8,7 @@ config BR2_HAVE_DOT_CONFIG
 
 config BR2_VERSION
 	string
-	default "2010.05-rc2-git
+	default "2010.05-rc2-git"
 
 source "target/Config.in.arch"
 source "target/device/Config.in"