do not exit
Signed-off-by: Jessica Frazelle <princess@docker.com>
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@ -20,7 +20,7 @@ RUN { \
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echo '\tlocal VERSION=$1'; \
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echo '\n\tif [[ -z $VERSION ]]; then'; \
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echo '\t\techo "Please specify a kernel version."'; \
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echo '\t\texit 1'; \
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echo '\t\treturn 1'; \
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echo '\tfi\n'; \
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echo '\tlocal MAJOR_VERSION=${VERSION:0:1}'; \
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echo '\n\t[ -d /usr/src/linux-${VERSION} ] || curl -sSL https://www.kernel.org/pub/linux/kernel/v${MAJOR_VERSION}.x/linux-${VERSION}.tar.xz | tar -v -C /usr/src -xJ'; \
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