make sure all files are processed..

this makes pre-caching files easier, and likely more what a user
expects..

ui/fixtures/cmd.basic.json

@@ -118,9 +118,10 @@
 },
 {
 	"title": "test file is not present",
-	"cmd": [ "list", "test.txt" ],
+	"cmd": [ "list", "test.txt", "newfile.txt" ],
 	"exit": 1,
-	"stderr": "ERROR: file not found: 'test.txt'\n"
+	"stderr": "ERROR: file not found: 'test.txt'\n",
+	"stdout_re": "foo:\tbar=baz\nhashes:\tsha512:90f8342520f0ac57fb5a779f5d331c2fa87aa40f8799940257f9ba619940951e67143a8d746535ed0284924b2b7bc1478f095198800ba96d01847d7b56ca465c\nsig:\t.*\ntag:\t\n"
 },
 {
 	"special": "copy newfile.txt to test.txt"

ui/medashare/cli.py

@@ -1377,6 +1377,7 @@ def cmd_auto(options):
 
 @init_datastructs
 def cmd_list(options, persona, objstr, cache):
+	exit = 0
 	for i in options.files:
 		try:
 			objs = objstr.by_file(i)
@@ -1390,12 +1391,16 @@ def cmd_list(options, persona, objstr, cache):
 				objs = objstr.by_file(i)
 			except (FileNotFoundError, KeyError) as e:
 				print('ERROR: file not found: %s' % repr(i), file=sys.stderr)
-				sys.exit(1)
+				exit = 1
+				continue
 
 		for j in objstr.by_file(i):
 			for k, v in _iterdictlist(j):
 				print('%s:\t%s' % (k, v))
 
+	if exit:
+		sys.exit(exit)
+
 def handle_bittorrent(fname, persona, objstr):
 	with open(fname, 'rb') as fp:
 		torrent = bencode.bdecode(fp.read())