support multiple volume flags in one group

bin/mtag/wget.py

@@ -6,7 +6,7 @@ application/x-www-form-urlencoded (for example using the
 message/pager function on the website)
 
 example copyparty config to use this:
-  --urlform save,get -vsrv/wget:wget:rwmd,ed:c,e2ts:c,mtp=title=ebin,t300,ad,bin/mtag/wget.py
+  --urlform save,get -vsrv/wget:wget:rwmd,ed:c,e2ts,mtp=title=ebin,t300,ad,bin/mtag/wget.py
 
 explained:
   for realpath srv/wget (served at /wget) with read-write-modify-delete for ed,

bin/mtag/yt-ipr.py

@@ -17,7 +17,7 @@ it's probably best to use this through a config file; see res/yt-ipr.conf
 
 but if you want to use plain arguments instead then:
   -v srv/ytm:ytm:w:rw,ed
-       :c,e2ts:c,e2dsa
+       :c,e2ts,e2dsa
        :c,sz=16k-1m:c,maxn=10,300:c,rotf=%Y-%m/%d-%H
        :c,mtp=yt-id,yt-title,yt-author,yt-channel,yt-views,yt-private,yt-manifest,yt-expires=bin/mtag/yt-ipr.py
        :c,mte=yt-id,yt-title,yt-author,yt-channel,yt-views,yt-private,yt-manifest,yt-expires