Merge pull request #1895 from lioncash/uninit

patch_manager: Prevent use of a dangling pointer within PatchRomFS

src/core/file_sys/patch_manager.cpp

@@ -286,13 +286,12 @@ static void ApplyLayeredFS(VirtualFile& romfs, u64 title_id, ContentRecordType t
 VirtualFile PatchManager::PatchRomFS(VirtualFile romfs, u64 ivfc_offset, ContentRecordType type,
                                      VirtualFile update_raw) const {
     const auto log_string = fmt::format("Patching RomFS for title_id={:016X}, type={:02X}",
-                                        title_id, static_cast<u8>(type))
-                                .c_str();
+                                        title_id, static_cast<u8>(type));
 
     if (type == ContentRecordType::Program || type == ContentRecordType::Data)
-        LOG_INFO(Loader, log_string);
+        LOG_INFO(Loader, "{}", log_string);
     else
-        LOG_DEBUG(Loader, log_string);
+        LOG_DEBUG(Loader, "{}", log_string);
 
     if (romfs == nullptr)
         return romfs;