Import bmake-20210621vendor/NetBSD/bmake/20210621

Lots more unit tests and code cleanup

Relevant changes from ChangeLog

	o job.c: Print -de error information when running multiple jobs
	o var.c: only report error for unmatched regex subexpression
	when linting (-dL) since we cannot tell when an unmatched
	subexpression is an expected result.
	reduce memory allocations in the modifiers ':D' and ':U'
	reduce memory allocation and strlen calls in modifier ':from=to'
	in the ':Q' modifier, only allocate memory if necessary
	improve performance for LazyBuf
	reduce debug logging and memory allocation for ${:U...}
	reduce verbosity of the -dv debug logging for standard cases
	fix double varname expansion in the variable modifier '::='
	o var.c: avoid evaluating many modifiers in parse only mode
	in strict mode (-dL) many variable references are parsed twice,
	the first time just to report parse errors early, so we want to
	avoid side effects and wasted effort to the extent possible.

1 files changed, 2 insertions, 2 deletions

diff --git a/unit-tests/counter-append.mk b/unit-tests/counter-append.mk
index 1c4e00d6118c..d234835e5ec3 100755
--- a/unit-tests/counter-append.mk
+++ b/unit-tests/counter-append.mk
@@ -1,4 +1,4 @@
-# $NetBSD: counter-append.mk,v 1.4 2020/10/17 16:57:17 rillig Exp $
+# $NetBSD: counter-append.mk,v 1.5 2021/04/04 10:13:09 rillig Exp $
 #
 # Demonstrates how to let make count the number of times a variable
 # is actually accessed, using the ::+= variable modifier.
@@ -15,7 +15,7 @@ COUNTER=	# zero
 NEXT=		${COUNTER::+=a}${COUNTER:[#]}
 
 # This variable is first set to empty and then expanded.
-# See parse.c, function Parse_DoVar, keyword "!Var_Exists".
+# See parse.c, function Parse_Var, keyword "!Var_Exists".
 A:=		${NEXT}
 B:=		${NEXT}
 C:=		${NEXT}