Created the User_functions.test_spectrum_read_intensities GUI test to catch bug #22105.
This is reported at https://gna.org/bugs/?22105.
The problem is that a single file name is split up into many files when the file selection button is clicked, one for each character of the file name.
Authored by: bugman 2014-05-28
Parent: [r23570]
Child: [r23572]
