Merge "Print with newline for ui_print."

install.cpp

@@ -420,11 +420,7 @@ static int try_update_binary(const char* path, ZipArchiveHandle zip, bool* wipe_
         LOG(ERROR) << "invalid \"set_progress\" parameters: " << line;
       }
     } else if (command == "ui_print") {
-      if (!args.empty()) {
-        ui->PrintOnScreenOnly("%s", args.c_str());
-      } else {
-        ui->PrintOnScreenOnly("\n");
-      }
+      ui->PrintOnScreenOnly("%s\n", args.c_str());
       fflush(stdout);
     } else if (command == "wipe_cache") {
       *wipe_cache = true;

updater/install.cpp

@@ -76,7 +76,6 @@ static void uiPrint(State* state, const std::string& buffer) {
   for (auto& line : lines) {
     if (!line.empty()) {
       fprintf(ui->cmd_pipe, "ui_print %s\n", line.c_str());
-      fprintf(ui->cmd_pipe, "ui_print\n");
     }
   }
 

updater/updater.cpp

@@ -191,7 +191,6 @@ int main(int argc, char** argv) {
         }
         fprintf(cmd_pipe, "ui_print %s\n", line.c_str());
       }
-      fprintf(cmd_pipe, "ui_print\n");
     }
 
     if (state.error_code != kNoError) {