master
* tests/scripts/features/patternrules: Check unreadable file support
* tests/*: Quote backticked command paths
* tests/scripts/*: Switch TAB chars to #TAB# markup
[SV 67046] Don't modify the hash table when inside hash_map*()
Convert references from "GNU make" to "GNU Make"
Update the test template. A few fixes in run_make_test(). Rename implicit_prereq_eval to patternrules, to be the start of a suite of tests of pattern rules.