util/util_readme: Don't recommend running this script with "sh"
util/util_readme/util_readme.sh is specifically a bash script and requires bash-specific features such as "[[". It doesn't work when run with a "sh" shell that only implements POSIX features, such as dash. Thus, tell the user to run the script directly, in which case the #! line is used. Change-Id: I5706ffe857c5a148e9776571a377ad8647f9a4c2 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/c/30162 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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# in `./util` subdirectories
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#
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# Execute from root of project. Example:
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# `sh util/util_readme/util_readme.sh`
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# `util/util_readme/util_readme.sh`
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UTIL_README_DIR="$(cd "$(dirname "$0")" || exit; pwd -P)"
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UTIL_DIR=$(dirname "$UTIL_README_DIR")
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