perf env: Rename some leftovers from rename to perf_env

In ce80d3bef9ff ("perf tools: Rename perf_session_env to perf_env") we
forgot to rename a few functions to the "perf_env" prefix, do it now.

Tested-by: Wang Nan <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 8edc205..2bf9b3f 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -211,7 +211,7 @@
 	}
 
 	if (!objdump_path) {
-		ret = perf_session_env__lookup_objdump(&session->header.env);
+		ret = perf_env__lookup_objdump(&session->header.env);
 		if (ret)
 			goto out;
 	}