Organize `.gitignore`.
-# Binary junk to ignore.
+# Binaries.
+
lily
pre-commit-tests
-lib/
test/t/backbone.*
-# CMake-related stuff.
-CMakeFiles
+# Generated by CMake.
+
CMakeCache.txt
+CMakeFiles/
cmake_install.cmake
compile_commands.json
+CTestTestfile.cmake
+DartConfiguration.tcl
install_manifest.txt
+lib/
Makefile
-
-# Generated by tests.
Testing/
-CTestTestfile.cmake
-DartConfiguration.tcl
