211 Maybe<FileMap> MmapPath(const std::string& path, std::string* out_error) {  in MmapPath()  argument
215     if (out_error) {  in MmapPath()
216       *out_error = SystemErrorCodeToString(errno);  in MmapPath()
223     if (out_error) {  in MmapPath()
224       *out_error = SystemErrorCodeToString(errno);  in MmapPath()
236     if (out_error) {  in MmapPath()
237       *out_error = SystemErrorCodeToString(errno);  in MmapPath()
245                         std::string* out_error) {  in AppendArgsFromFile()  argument
248     if (out_error) {  in AppendArgsFromFile()
249       *out_error = "failed to read argument-list file";  in AppendArgsFromFile()
264                            std::string* out_error) {  in AppendSetArgsFromFile()  argument
267     if (out_error) {  in AppendSetArgsFromFile()
268       *out_error = "failed to read argument-list file";  in AppendSetArgsFromFile()