Disable pushd / popd wrappers

See https://github.com/travis-ci/travis-ci/issues/8703#issuecomment-348866918

Disable pushd / popd wrappers
See https://github.com/travis-ci/travis-ci/issues/8703#issuecomment-348866918
7fe5a7a1 · Matthew Brett · fa30a0d4 · 7fe5a7a1
Commit 7fe5a7a1 authored Dec 18, 2017 by Matthew Brett
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common_utils.sh common_utils.sh +2 -0

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--- a/common_utils.sh
+++ b/common_utils.sh
@@ -22,6 +22,8 @@ shell_session_update() { :; }
 # suggested by Thomas K at
 # https://github.com/travis-ci/travis-ci/issues/8703#issuecomment-347881274
 unset -f cd
+unset -f pushd
+unset -f popd

 function start_spinner {
    if [ -n "$MB_SPINNER_PID" ]; then