compiler_wrapper: rename GETRUSAGE flag

GETRUSAGE has been renamed TOOLCHAIN_RUSAGE_OUTPUT for clarity.

BUG=chromium:1156314
TEST=Reran unit tests for package main

Change-Id: I4588b4138f0dd4e4938762250e5caa6b4026e3f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/2594261
Reviewed-by: George Burgess <gbiv@chromium.org>
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Ryan Beltran <ryanbeltran@chromium.org>
Commit-Queue: Ryan Beltran <ryanbeltran@chromium.org>
diff --git a/compiler_wrapper/compiler_wrapper.go b/compiler_wrapper/compiler_wrapper.go
index 2b9459e..aca5aa7 100644
--- a/compiler_wrapper/compiler_wrapper.go
+++ b/compiler_wrapper/compiler_wrapper.go
@@ -145,7 +145,7 @@
 	bisectStage := getBisectStage(env)
 	if shouldForceDisableWerror(env, cfg) {
 		if rusageLogfileName != "" {
-			return 0, newUserErrorf("GETRUSAGE is meaningless with FORCE_DISABLE_WERROR")
+			return 0, newUserErrorf("TOOLCHAIN_RUSAGE_OUTPUT is meaningless with FORCE_DISABLE_WERROR")
 		}
 		if bisectStage != "" {
 			return 0, newUserErrorf("BISECT_STAGE is meaningless with FORCE_DISABLE_WERROR")
@@ -154,7 +154,7 @@
 	}
 	if shouldCompileWithFallback(env) {
 		if rusageLogfileName != "" {
-			return 0, newUserErrorf("GETRUSAGE is meaningless with FORCE_DISABLE_WERROR")
+			return 0, newUserErrorf("TOOLCHAIN_RUSAGE_OUTPUT is meaningless with FORCE_DISABLE_WERROR")
 		}
 		if bisectStage != "" {
 			return 0, newUserErrorf("BISECT_STAGE is meaningless with FORCE_DISABLE_WERROR")
@@ -163,7 +163,7 @@
 	}
 	if rusageLogfileName != "" {
 		if bisectStage != "" {
-			return 0, newUserErrorf("BISECT_STAGE is meaningless with GETRUSAGE")
+			return 0, newUserErrorf("BISECT_STAGE is meaningless with TOOLCHAIN_RUSAGE_OUTPUT")
 		}
 		return logRusage(env, rusageLogfileName, compilerCmd)
 	}