chore: .asc --> .adoc in preparation to improve manual generation

Antora seems to require .adoc.

https://asciidoctor.org/docs/asciidoc-recommended-practices/ recommends
.adoc extension.

Makefile

@@ -118,19 +118,19 @@ endif
 	@rm -f -- "$@"
 	xsltproc -o "$@" -nonet http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl $<
 
-%.xml: %.asc
+%.xml: %.adoc
 	@rm -f -- "$@"
 	asciidoc -a "version=$(DRACUT_FULL_VERSION)" -d manpage -b docbook -o "$@" $<
 
-dracut.8: man/dracut.8.asc \
-	man/dracut.usage.asc
+dracut.8: man/dracut.8.adoc \
+	man/dracut.usage.adoc
 
-dracut.html: man/dracut.asc $(manpages) docs/dracut.css man/dracut.usage.asc
+dracut.html: man/dracut.adoc $(manpages) docs/dracut.css man/dracut.usage.adoc
 	@rm -f -- dracut.xml
 	asciidoc -a "mainversion=$(DRACUT_MAIN_VERSION)" \
 		-a "version=$(DRACUT_FULL_VERSION)" \
 		-a numbered \
-		-d book -b docbook -o dracut.xml man/dracut.asc
+		-d book -b docbook -o dracut.xml man/dracut.adoc
 	@rm -f -- dracut.html
 	xsltproc -o dracut.html --xinclude -nonet \
 		--stringparam custom.css.source docs/dracut.css \

README.md

@@ -29,8 +29,8 @@ subdirectory, and use functionality provided by dracut-functions to do their
 work.
 
 Documentation:
- - [Introduction](man/dracut.asc)
- - [User Manual](man/dracut.usage.asc)
+ - [Introduction](man/dracut.adoc)
+ - [User Manual](man/dracut.usage.adoc)
 
 Currently dracut-ng is developed on [github.com](https://github.com/dracut-ng/dracut-ng).
 

man/dracut.8.asc → man/dracut.8.adoc

@@ -43,7 +43,7 @@ of some tools. It should be attached to any report about dracut problems.
 USAGE
 -----
 
-include::dracut.usage.asc[]
+include::dracut.usage.adoc[]
 
 OPTIONS
 -------

man/dracut.asc → man/dracut.adoc

@@ -150,26 +150,26 @@ This ensures, that all devices are disassembled and unmounted cleanly.
 = User Manual
 
 :leveloffset: 1
-include::dracut.8.asc[]
+include::dracut.8.adoc[]
 
 :leveloffset: 1
 [[dracutconf5]]
-include::dracut.conf.5.asc[]
+include::dracut.conf.5.adoc[]
 
 [[dracutcmdline7]]
-include::dracut.cmdline.7.asc[]
+include::dracut.cmdline.7.adoc[]
 
 [[lsinitrd1]]
-include::lsinitrd.1.asc[]
+include::lsinitrd.1.adoc[]
 
 = Developer Manual
 
 :leveloffset: 1
 [[dracutmodules7]]
-include::dracut.modules.7.asc[]
+include::dracut.modules.7.adoc[]
 
 [[dracutbootup7]]
-include::dracut.bootup.7.asc[]
+include::dracut.bootup.7.adoc[]
 
 :leveloffset: 0
 [appendix]