Check if logger process is still running prior to forcefully killing it (#339)

Author: mykola-mokhnach

lib/device-log/ios-log.js

@@ -230,8 +230,10 @@ class IOSLog extends EventEmitter {
       try {
         await this.proc.stop('SIGTERM', 1000);
       } catch (e) {
-        logger.error('Cannot stop log capture process. Sending SIGKILL...');
-        await this.proc.stop('SIGKILL');
+        if (this.proc.isRunning) {
+          logger.warn('Cannot stop log capture process. Sending SIGKILL...');
+          await this.proc.stop('SIGKILL');
+        }
       }
     }
   }