func (src List) OneRelease() string {
	release := src.AllReleases()
	if len(release) != 1 {
		panic(fmt.Errorf("should have gotten tools for one os type, got %v", release))
	}
	return release[0]
}
// OneRelease returns the single os type for which all tools in src were built.
OneRelease returns the single os type for which all tools in src were built.
// OneRelease returns the single os type for which all tools in src were built .
func (src List) OneRelease() string {
	release := src.AllReleases()
	if len(release) != 1 {
		panic(fmt.Errorf("should have gotten tools for one os type, got %v", release))
	}
	return release[0]
}
func ( src List ) OneRelease ( ) string { release := src . AllReleases ( ) if len ( release ) != 1 { panic ( fmt . Errorf ( " " , release ) ) } return release [ 0 ] }
OneRelease returns the single os type for which all tools in src were built.
OneRelease returns the single os type for which all tools in src were built .