$NetBSD: patch-build__tools_autorevision,v 1.1 2020/01/27 19:35:54 triaxx Exp $

Fix portability error with "==" operator in test.

--- build_tools/autorevision.orig	2019-08-31 18:17:21.000000000 +0000
+++ build_tools/autorevision
@@ -342,7 +342,7 @@ EOF
 if [ -f "${CACHEFILE}" ] && [ "${CACHEFORCE}" = "1" ]; then
 	# When requested only read from the cache to populate our symbols.
 	. "${CACHEFILE}"
-elif [ -n "${TRAVIS}" ] && [ "${TRAVIS}" == "true" ]; then
+elif [ -n "${TRAVIS}" ] && [ "${TRAVIS}" = "true" ]; then
 	# Autorevision is being executed from a Travis-CI build
 	travisCIBuild
 elif [ ! -z "$(git rev-parse HEAD 2>/dev/null)" ]; then
