remove format method call (#163)

Signed-off-by: Brian Downs <brian.downs@gmail.com>

Consolidate the dependencies for the IsTerminal() API (#156)

* Consolidate the dependencies for the IsTerminal() API

The code was already using golang.org/x/term for the IsTerminal() API.
It seems better to stick to packages from the golang.org domain, because
they are likely to be more widely used than github.com/mattn/go-isatty,
and one less dependency is always a good thing.

This can reduce the number of dependencies for consumers of
github.com/briandowns/spinner, who may already have golang.org/x/term in
their dependency chain.

update deps

Signed-off-by: Brian Downs <brian.downs@gmail.com>

update go.mod

Signed-off-by: Brian Downs <brian.downs@gmail.com>

fix vendoring

Signed-off-by: Brian Downs <brian.downs@gmail.com>

Support for multi-line spinner strings (#146)

add enable/disable toggle (#144)

start spinner only when fd is terminal (#131)

updates (#129)

Signed-off-by: Brian Downs <brian.downs@gmail.com>

Move cursor to the beginning of the line before erasing (#126)

The \033[K escape sequence signifies 'clear from cursor position to the
end of the line'. Without moving the cursor to the beggining of the line
first it results in no text being deleted. The behaviour of Carriage
Return (\r) in terminal emulators is not formally standardized but it is
generally interpreted as a move to the beginning of the line.

Fixes #123