* lib/gdb.exp: Fix comment which erroneously identified

gdb_file_cmd as gdb_load (the 19 May change was in fact to
	gdb_file_cmd not gdb_load).
	* config/unix-gdb.exp (gdb_load): Add "upvar timeout timeout".

gdb/testsuite/config/unix-gdb.exp

@@ -56,6 +56,7 @@ proc gdb_load { arg } {
     global loadfile
     global GDB
     global prompt
+    upvar timeout timeout
 
     return [gdb_file_cmd $arg]
 }