Set the target of the specified reference. This reference must be
locked.
@param tx the transaction
@param refname reference to update
@param target target to set the reference to
@param sig signature to use in the reflog; pass null to read the identity
from the config
@param msg message to use in the reflog
@return 0, git_error_code.GIT_ENOTFOUND if the reference is not among the locked ones, or an
error code
Set the target of a reference
Set the target of the specified reference. This reference must be locked.
@param tx the transaction @param refname reference to update @param target target to set the reference to @param sig signature to use in the reflog; pass null to read the identity from the config @param msg message to use in the reflog @return 0, git_error_code.GIT_ENOTFOUND if the reference is not among the locked ones, or an error code