bz2pi: have prettier Froms on bug notifications

Include "Author Name via {botname}" in from.

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>

src/bugspray/bz2pi.py

diff --git a/src/bugspray/bz2pi.py b/src/bugspray/bz2pi.py
index f9806a8..cd1087a 100644
--- a/src/bugspray/bz2pi.py
+++ b/src/bugspray/bz2pi.py
@@ -50,10 +50,16 @@
             continue
         clines = cdata['text'].strip().splitlines()
         inre_cid = None
-        comment_author = cdata['creator']
+        creator = cdata['creator']
+        comment_user = bugspray.bz_get_user(creator)
+        comment_author_name = comment_user.get('real_name')
+        if not comment_author_name:
+            comment_author_name = creator.split('@')[0]
         if privacy_mode:
-            comment_author = comment_author.split('@')[0]
+            comment_author = comment_author_name
             logger.debug('Privacy mode, comment_author=%s', comment_author)
+        else:
+            comment_author = f'{comment_author_name} <{creator}>'
 
         bodyvals = {
             'bzname': config['bugzilla'].get('name'),
@@ -89,8 +95,11 @@
         bodyvals['comment_text'] = '\n'.join(clines)
 
         msg = email.message.EmailMessage()
+        fromaddr = email.utils.parseaddr(config['notify'].get('fromaddr'))
+        fromaddr = (f'{comment_author_name} via {fromaddr[0]}', fromaddr[1])
+        msg['From'] = b4.format_addrs([fromaddr])
         if not privacy_mode:
-            msg['Reply-To'] = b4.format_addrs([('', cdata['creator'])])
+            msg['Reply-To'] = b4.format_addrs([(comment_author_name, cdata['creator'])])
         # A little hack to make sure Date: is consecutive for threads
         try:
             msg['Date'] = email.utils.formatdate(msgts + int(cdata['count']), localtime=True)