bump version to 2.13 beta, add *.asc to clean target

CHANGES

@@ -1,3 +1,8 @@
+2.13 / <not released yet>
+
+ - no noteworthy changes yet
+
+
 2.12 / 21-Jan-2024
 
  - Fixed

Makefile.am

@@ -183,7 +183,7 @@ uninstall-hook:
 	@echo
 
 clean-local:
-	-rm -fr coverage cov-int *.lcov *.gz test*.log test*.xml src/*.gc* tests/*.gc* tests/*.conf *.old *.new *check.png INSTALL INSTALL_BSD UPGRADE UNINSTALL
+	-rm -fr coverage cov-int *.lcov *.gz *.asc test*.log test*.xml src/*.gc* tests/*.gc* tests/*.conf *.old *.new *check.png INSTALL INSTALL_BSD UPGRADE UNINSTALL
 
 check-local: check-TESTS
 	tail -n 2 test.log

Makefile.in

@@ -2645,7 +2645,7 @@ uninstall-hook:
 	@echo
 
 clean-local:
-	-rm -fr coverage cov-int *.lcov *.gz test*.log test*.xml src/*.gc* tests/*.gc* tests/*.conf *.old *.new *check.png INSTALL INSTALL_BSD UPGRADE UNINSTALL
+	-rm -fr coverage cov-int *.lcov *.gz *.asc test*.log test*.xml src/*.gc* tests/*.gc* tests/*.conf *.old *.new *check.png INSTALL INSTALL_BSD UPGRADE UNINSTALL
 
 check-local: check-TESTS
 	tail -n 2 test.log

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71 for vnstat 2.12.
+# Generated by GNU Autoconf 2.71 for vnstat 2.13_beta1.
 #
 #
 # Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
@@ -608,8 +608,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='vnstat'
 PACKAGE_TARNAME='vnstat'
-PACKAGE_VERSION='2.12'
-PACKAGE_STRING='vnstat 2.12'
+PACKAGE_VERSION='2.13_beta1'
+PACKAGE_STRING='vnstat 2.13_beta1'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL=''
 
@@ -1336,7 +1336,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures vnstat 2.12 to adapt to many kinds of systems.
+\`configure' configures vnstat 2.13_beta1 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1407,7 +1407,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of vnstat 2.12:";;
+     short | recursive ) echo "Configuration of vnstat 2.13_beta1:";;
    esac
   cat <<\_ACEOF
 
@@ -1516,7 +1516,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-vnstat configure 2.12
+vnstat configure 2.13_beta1
 generated by GNU Autoconf 2.71
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -2061,7 +2061,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by vnstat $as_me 2.12, which was
+It was created by vnstat $as_me 2.13_beta1, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -3335,7 +3335,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='vnstat'
- VERSION='2.12'
+ VERSION='2.13_beta1'
 
 
 printf "%s\n" "#define PACKAGE \"$PACKAGE\"" >>confdefs.h
@@ -7065,7 +7065,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by vnstat $as_me 2.12, which was
+This file was extended by vnstat $as_me 2.13_beta1, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -7133,7 +7133,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-vnstat config.status 2.12
+vnstat config.status 2.13_beta1
 configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -1,6 +1,6 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
-AC_INIT([vnstat], [2.12])
+AC_INIT([vnstat], [2.13_beta1])
 AM_INIT_AUTOMAKE([foreign subdir-objects std-options -Wall -Werror])
 AM_MAINTAINER_MODE