Improve man page

Makefile

@@ -66,7 +66,12 @@ base:
 	gzip -9cn man/psi2log.1 > $(DESTDIR)$(MANDIR)/man1/psi2log.1.gz
 
 	install -d $(DESTDIR)$(MANDIR)/man8
-	gzip -9cn man/nohang.8 > $(DESTDIR)$(MANDIR)/man8/nohang.8.gz
+
+	sed "s|:SYSCONFDIR:|$(SYSCONFDIR)|g; s|:DATADIR:|$(DATADIR)|g" \
+		man/nohang.8 > nohang.8
+
+	gzip -9cn nohang.8 > $(DESTDIR)$(MANDIR)/man8/nohang.8.gz
+	rm -fv nohang.8
 
 	install -d $(DESTDIR)$(DOCDIR)
 	install -m0644 README.md $(DESTDIR)$(DOCDIR)/README.md

docs/nohang.manpage.md

@@ -49,16 +49,16 @@ show tasks state and exit. This should only be used with -c/--config CONFIG opti
 
 # FILES
 
-#### $SYSCONFDIR/nohang/nohang.conf
+#### :SYSCONFDIR:/nohang/nohang.conf
 path to vanilla nohang configuration file
 
-#### $SYSCONFDIR/nohang/nohang-desktop.conf
+#### :SYSCONFDIR:/nohang/nohang-desktop.conf
 path to configuration file with settings optimized for desktop usage
 
-#### $DATADIR/nohang/nohang.conf
+#### :DATADIR:/nohang/nohang.conf
 path to file with *default* nohang.conf values
 
-#### $DATADIR/nohang/nohang-desktop.conf
+#### :DATADIR:/nohang/nohang-desktop.conf
 path to file with *default* nohang-desktop.conf values
 
 #### /var/log/nohang/nohang.log

man/nohang.8

@@ -60,16 +60,16 @@ This should only be used with \-c/\-\-config CONFIG option
 show tasks state and exit.
 This should only be used with \-c/\-\-config CONFIG option
 .SH FILES
-.SS $SYSCONFDIR/nohang/nohang.conf
+.SS :SYSCONFDIR:/nohang/nohang.conf
 .PP
 path to vanilla nohang configuration file
-.SS $SYSCONFDIR/nohang/nohang\-desktop.conf
+.SS :SYSCONFDIR:/nohang/nohang\-desktop.conf
 .PP
 path to configuration file with settings optimized for desktop usage
-.SS $DATADIR/nohang/nohang.conf
+.SS :DATADIR:/nohang/nohang.conf
 .PP
 path to file with \f[I]default\f[] nohang.conf values
-.SS $DATADIR/nohang/nohang\-desktop.conf
+.SS :DATADIR:/nohang/nohang\-desktop.conf
 .PP
 path to file with \f[I]default\f[] nohang\-desktop.conf values
 .SS /var/log/nohang/nohang.log