Do not close stderr/stdout before program finish

Programs like grep called in '$' command will fail due to SIGPIPE
for example. So we need to keep the pipe open.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/command_manager.cc b/src/command_manager.cc
index e57ab196..9ac3a8d4 100644
--- a/src/command_manager.cc
+++ b/src/command_manager.cc
@@ -271,7 +271,7 @@ String expand_token(const Token& token, const Context& context,
     {
     case Token::Type::ShellExpand:
         return ShellManager::instance().eval(content, context, {},
-                                             ShellManager::Flags::ReadOutput,
+                                             ShellManager::Flags::WaitForStdout,
                                              shell_params, env_vars).first;
     case Token::Type::RegisterExpand:
         return context.main_sel_register_value(content).str();