acp: Fix `read_text_file` erroring on empty files (#38856)
The previous validation was too strict and didn't permit reading empty
files.
Addresses: https://github.com/google-gemini/gemini-cli/issues/9280
Release Notes:
- acp: Fix `read_text_file` returning errors for empty files
bc11844b2eBen Brandt committed on 9/25/2025, 9:15:50 AM· committed by GitHubparent10b99c6