[FIX] Fix bug and typo in rpc_server (#263)

* [FIX] Fix bug and typo in rpc_server

* [FIX] Remove unnecessary condition

python/tvm/exec/rpc_server.py

@@ -19,22 +19,21 @@ def main():
                         help='The end search port of the PRC')
     parser.add_argument('--with-executor', type=bool, default=False,
                         help="Whether to load executor runtime")
-    parser.add_argument('--load-libary', type=str, default="",
-                        help="Additional libary to load")
+    parser.add_argument('--load-library', type=str, default="",
+                        help="Additional library to load")
     args = parser.parse_args()
 
     logging.basicConfig(level=logging.INFO)
-    load_libary = args.load_libary.split(":")
+    load_library = [lib for lib in args.load_library.split(":") if len(lib) != 0]
     curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
     apps_path = os.path.join(curr_path, "../../../apps/graph_executor/lib/")
     libs = []
     if args.with_executor:
-        load_libary += ["libtvm_graph_exec.so"]
-    if load_libary:
-        for file_name in args.load_libary.split(":"):
+        load_library += ["libtvm_graph_exec.so"]
+    for file_name in load_library:
         file_name = find_lib_path(file_name, apps_path)[0]
         libs.append(ctypes.CDLL(file_name, ctypes.RTLD_GLOBAL))
-            logging.info("Load additional libary %s", file_name)
+        logging.info("Load additional library %s", file_name)
 
     server = rpc.Server(args.host, args.port, args.port_end)
     server.libs += libs