Implement --serverlist.. again

CHANGELOG.md

@@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file.
 ## [Unreleased]
 ### Added
 - `CHANGELOG.md` according to [keepachangelog.com](http://keepachangelog.com).
+- Option: `--serverlist`
 
 ### Changed
 - Renamed `nvim-remote.py` to `nvr` for convenience.

nvr

@@ -119,6 +119,9 @@ def parse_args():
     parser.add_argument('--servername',
             metavar = '<sock>',
             help    = 'path to unix socket (overrides $NVIM_LISTEN_ADDRESS)')
+    parser.add_argument('--serverlist',
+            action  = 'store_true',
+            help    = 'prints socket path to be used')
 
     return parser.parse_known_args()
 
@@ -145,6 +148,10 @@ def main():
         if sockpath is None:
             sockpath = '/tmp/nvimsocket'
 
+    if args.serverlist:
+        if sockpath is not None:
+            print(sockpath)
+
     n = Neovim(sockpath)
 
     if args.remote_silent and n.attached(silent=True):