Update to last release 20210803
    
    Verify signed sources
    
    Resolves: rhbz#1927498
    
    2021-08-03  Simon J Gerraty  <sjg@beast.crufty.net>
    
    	* var.c: use long for :On if we don't have a 64bit int type
    
    	* VERSION (_MAKE_VERSION): 20210803
    	Merge with NetBSD make, pick up
    	o rework varmod-order tests to avoid qsort instability
    	o make.1: clarify :On entry
    
    2021-07-31  Simon J Gerraty  <sjg@beast.crufty.net>
    
    	* VERSION (_MAKE_VERSION): 20210731
    	Merge with NetBSD make, pick up
    	o fix some lint issues
    	o more unit tests
    	o var.c: rework of ApplyModifier_Order
    
    2021-07-30  Simon J Gerraty  <sjg@beast.crufty.net>
    
    	* util.c: add strto*l if HAVE_STRTO*L not defined
    
    	* VERSION (_MAKE_VERSION): 20210730
    	Merge with NetBSD make, pick up
    	o var.c: add :On and :Orn for numeric sort
    	  disabled if no 64bit type available.
    	o _strtol.h: to implement strto*l functions
    
    2021-07-04  Simon J Gerraty  <sjg@beast.crufty.net>
    
    	* VERSION (_MAKE_VERSION): 20210704
    	Merge with NetBSD make, pick up
    	o unit-tests: fix some tests to be more portable
    	- job-output-null not all shells do the same number of write calls
    	- objdir-writable if TMPDIR is set; /tmp may not be usable
    
    2021-07-01  Simon J Gerraty  <sjg@beast.crufty.net>
    
    	* VERSION (_MAKE_VERSION): 20210701
    	Merge with NetBSD make, pick up
    	o unit-tests: allow for BROKEN_TESTS to list TESTS to be skipped;
    	some tests just cannot work in some environments.
    	o buf.c: simpler upper bound for length in Buf_AddInt
    	o cond.c: fix grammar in error message for malformed conditional
    	o for.c: prevent newline injection (from ${.newline}) in .for loops
    	o var.c: use more practical data type in RegexReplace
    	(avoid need for %zu)
    	extract RegexReplace from ModifyWord_SubstRegex