pip-tools: Generate Bash completions

Author: StenAL

Formula/p/pip-tools.rb

@@ -54,7 +54,7 @@ def install
     virtualenv_install_with_resources
 
     %w[pip-compile pip-sync].each do |script|
-      generate_completions_from_executable(bin/script, shells: [:fish, :zsh], shell_parameter_format: :click)
+      generate_completions_from_executable(bin/script, shells: [:bash, :fish, :zsh], shell_parameter_format: :click)
     end
   end