Fix run_tests target.

The COMMANDs will “not necessarily composed into a stateful shell or
batch script” so the change directory needs to be linked with the
command that needs it. This fixes “make run_tests”.

Change-Id: I364530fe1331aba7fa9899616916f610981c2c95
Reviewed-on: https://boringssl-review.googlesource.com/11263
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7438caf..a0c6998 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -214,9 +214,9 @@
     run_tests
     COMMAND ${GO_EXECUTABLE} run util/all_tests.go -build-dir
             ${CMAKE_BINARY_DIR}
-    COMMAND cd ssl/test/runner
-    COMMAND ${GO_EXECUTABLE} test -shim-path $<TARGET_FILE:bssl_shim>
-            ${RUNNER_ARGS}
+    COMMAND cd ssl/test/runner &&
+            ${GO_EXECUTABLE} test -shim-path $<TARGET_FILE:bssl_shim>
+              ${RUNNER_ARGS}
     WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
     DEPENDS all_tests bssl_shim
     ${MAYBE_USES_TERMINAL})