Merge pull request #67 from brennantaylor/print_if_no_pids

Print line if we have not seen any pids created yet

pidcat.py

@@ -176,6 +176,7 @@ if sys.stdin.isatty():
 else:
   adb = FakeStdinProcess()
 pids = set()
+seen_pids = False
 last_tag = None
 app_pid = None
 
@@ -234,6 +235,7 @@ while adb.poll() is None:
 
     if match_packages(line_package):
       pids.add(line_pid)
+      seen_pids = True
 
       app_pid = line_pid
 
@@ -263,7 +265,7 @@ while adb.poll() is None:
       message = message.lstrip()
       owner = app_pid
 
-  if owner not in pids:
+  if seen_pids and owner not in pids:
     continue
   if level in LOG_LEVELS_MAP and LOG_LEVELS_MAP[level] < min_level:
     continue