Unified Logging configuration output needs simplifying

The Unified Logging configuration output, used e.g. in the stack trace, is verbose and practically unreadable since it includes all tag combinations (which are warning-level by default) in a one-line, unalphabetized list. It is therefore difficult to find which new levels have been turned on. A more user-friendly version should be produced by re-formatting the output and/or reassigning the logging levels that produce the configurations.

Sample:

    Logging:
    Log output configuration:
    #0: stdout gc+workgang=warning,os+cpu=warning,vmoperation=warning,verification=warning,ref=warning,modules+startuptime=warning,monitorinflation=warning,safepoint+cleanup=warning,ergo=warning,os+thread=warning,os=warning,pagesize=warning,safepoint=warning,redefine+class+oopmap=warning,redefine+class+nmethod=warning,redefine+class+methodcomparator=warning,startuptime=warning,gc+metaspace+alloc=warning,gc+metaspace=warning,gc+metaspace+freelist=warning,gc+ref+start=warning,logging+test=warning,class+loader+constraints=warning,redefine+class+update+itables=warning,itables=warning,vtables=warning,redefine+class+dump=warning,redefine+class=warning,redefine+class+subclass=warning,redefine+class+obsolete+mark=warning,redefine+class+stackmap=warning,redefine+class+annotation=warning,redefine+class+load+exceptions=warning,redefine+class+normalize=warning,redefine+class+constantpool=warning,redefine+class+obsolete+metadata=warning,redefine+class+load=warning,redefine+class+timer=warning,redefine+class+breakpoint=warning,jvmti+objecttagging=warning,jvmti=warning,stacktrace=warning,gc+heap+exit=warning,redefine+class+obsolete=warning,redefine+class+iklass+add=warning,redefine+class+iklass+purge=warning,redefine+class+update+vtables=warning,modules=warning,class+init=warning,gc+remset+scrub=warning,monitormismatch=warning,gc+cpu=warning,gc+task+time=warning,gc+task+thread=warning,gc+jni=warning,gc+stringdedup=warning,gc+remset+exit=warning,gc+marking+start=warning,gc+remset=warning,gc+verify+start=warning,gc+mmu=warning,gc+ihop=warning,gc+phases+task=warning,gc+ergo+ihop=warning,gc+stats=warning,gc+ergo+cset=warning,gc+humongous=warning,gc+stringtable=warning,gc+task+stats=warning,gc+heap+region=warning,gc+alloc+region=warning,protectiondomain=warning,defaultmethods=debug,gc+ergo+heap=warning,redefine+class+update+constantpool=warning,redefine+class+update=warning,gc+marking=warning,gc+survivor=warning,gc+phases+verify=warning,gc+phases+verify+start=warning,gc+phases=warning,gc+phases+start=warning,gc+state=warning,gc+promotion=warning,gc+refine=warning,gc+ergo+refine=warning,gc+plab=warning,gc+alloc=warning,gc+liveness=warning,gc+classhisto+start=warning,gc+classhisto=warning,gc+start=warning,gc+ref=warning,class+unload=warning,class+loader+data=warning,class+path=warning,class+preorder=warning,class+resolve=warning,class+load=warning,gc+verify=warning,gc+barrier=warning,exceptions=warning,gc+bot=warning,gc+compaction=warning,gc+freelist+stats=warning,gc+freelist+census=warning,biasedlocking=warning,attach=warning,gc+scavenge=warning,logging=warning,gc+heap+coops=warning,gc+heap=warning,arguments=warning,gc+region=warning,gc+age=warning,heap+ergo=warning,gc+sweep=warning,gc+tlab=warning,gc+task=warning,gc+freelist=warning,gc=warning,gc+ergo=warning uptime,level,tags
    #1: stderr all=off uptime,level,tags