move-to-left-margin
move-to-left-margin is an interactive compiled Lisp function in `indent.el
'.
(move-to-left-margin &optional N FORCE)
Move to the left margin of the current line.
With optional argument, move forward N-1 lines first.
The column moved to is the one given by the `current-left-margin' function.
If the line's indentation appears to be wrong, and this command is called
interactively or with optional argument FORCE, it will be fixed.