完善key-value解析代码

src/Common/Parser.cpp

@@ -148,9 +148,12 @@ StrCaseMap Parser::parseArgs(const string &str, const char *pair_delim, const ch
             auto val = trim(FindField(key_val.data(), key_delim, NULL));
             ret.emplace_force(key, val);
         } else {
+            trim(key_val);
+            if (!key_val.empty()) {
                 ret.emplace_force(key_val, "");
             }
         }
+    }
     return ret;
 }