Rename package libupsclient3 to libupsclient4, soname got bumped again

debian/libupsclient4.symbols

@@ -0,0 +1,78 @@
+libupsclient.so.4 libupsclient4 #MINVER#
+ UPS_VERSION@Base 2.7.2
+ altpidpath@Base 2.7.2
+ background@Base 2.7.2
+ become_user@Base 2.7.2
+ chroot_start@Base 2.7.2
+ confpath@Base 2.7.2
+ dflt_statepath@Base 2.7.2
+ fatal_with_errno@Base 2.7.2
+ fatalx@Base 2.7.2
+ get_user_pwent@Base 2.7.2
+ ltrim@Base 2.7.2
+ nut_debug_level@Base 2.7.2
+ nut_log_level@Base 2.7.2
+ open_syslog@Base 2.7.2
+ pconf_char@Base 2.7.2
+ pconf_encode@Base 2.7.2
+ pconf_file_begin@Base 2.7.2
+ pconf_file_next@Base 2.7.2
+ pconf_finish@Base 2.7.2
+ pconf_init@Base 2.7.2
+ pconf_line@Base 2.7.2
+ pconf_parse_error@Base 2.7.2
+ rtrim@Base 2.7.2
+ select_read@Base 2.7.2
+ select_write@Base 2.7.2
+ sendsignal@Base 2.7.2
+ sendsignalfn@Base 2.7.2
+ snprintfcat@Base 2.7.2
+ state_addcmd@Base 2.7.2
+ state_addenum@Base 2.7.2
+ state_addrange@Base 2.7.2
+ state_cmdfree@Base 2.7.2
+ state_delcmd@Base 2.7.2
+ state_delenum@Base 2.7.2
+ state_delinfo@Base 2.7.2
+ state_delrange@Base 2.7.2
+ state_getaux@Base 2.7.2
+ state_getenumlist@Base 2.7.2
+ state_getflags@Base 2.7.2
+ state_getinfo@Base 2.7.2
+ state_getrangelist@Base 2.7.2
+ state_infofree@Base 2.7.2
+ state_setaux@Base 2.7.2
+ state_setflags@Base 2.7.2
+ state_setinfo@Base 2.7.2
+ state_tree_find@Base 2.7.2
+ syslogbit_set@Base 2.7.2
+ upscli_add_host_cert@Base 2.7.2
+ upscli_cleanup@Base 2.7.2
+ upscli_connect@Base 2.7.2
+ upscli_disconnect@Base 2.7.2
+ upscli_errlist@Base 2.7.2
+ upscli_fd@Base 2.7.2
+ upscli_get@Base 2.7.2
+ upscli_init@Base 2.7.2
+ upscli_list_next@Base 2.7.2
+ upscli_list_start@Base 2.7.2
+ upscli_readline@Base 2.7.2
+ upscli_sendline@Base 2.7.2
+ upscli_splitaddr@Base 2.7.2
+ upscli_splitname@Base 2.7.2
+ upscli_ssl@Base 2.7.2
+ upscli_strerror@Base 2.7.2
+ upscli_tryconnect@Base 2.7.2
+ upscli_upserror@Base 2.7.2
+ upsdebug_ascii@Base 2.7.2
+ upsdebug_hex@Base 2.7.2
+ upsdebug_with_errno@Base 2.7.2
+ upsdebugx@Base 2.7.2
+ upslog_with_errno@Base 2.7.2
+ upslogx@Base 2.7.2
+ writepid@Base 2.7.2
+ xbasename@Base 2.7.2
+ xcalloc@Base 2.7.2
+ xmalloc@Base 2.7.2
+ xrealloc@Base 2.7.2
+ xstrdup@Base 2.7.2