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* src/mutex.sh: Update copyright noticePatrick McDermott2019-04-251-1/+1
* mutex_unlock(), mutex_is_unlockable(): Delimit cmd operandsPatrick McDermott2019-04-251-2/+2
* _mutex_trylock(), mutex_is_unlockable(): Make "set -e"-safePatrick McDermott2019-04-251-6/+4
* mutex_trylock(): Make "static"Patrick McDermott2019-04-251-2/+2
* Add braces to param exps in arith substsPatrick McDermott2019-04-191-1/+1
* Always use rm's -f optionP. J. McDermott2016-01-231-1/+1
* Add explicit returns to some functionsP. J. McDermott2016-01-181-0/+4
* Move lib/*.sh to src/P. J. McDermott2015-12-061-0/+54