DESCLONG: Stata module to create and save a dataset holding variable information while including long variable labels

desclong creates and saves a variable information-dataset (similar to what is facilitated by the -describe- command) where originally abbreviated variable labels - with Stata holding the full labels stored as notes-characteristics - are displayed with respect to their full length. (This situation may arise when exporting a dataset with long variable labels to Stata, e.g. from a SAS-format, where the long labels will then be put into Stata-notes; with abbreviated versions filling the actual Stata variable labels.) It is mandatory to state a filename for the saved variable information-dataset; all other options are optional. Note that this in the above sense extends the built-in -describe- command, which it also uses internally as part of the dataset construction.