[BUGFIX] Shows error for empty filenames (vim-startify) #1081
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Description of Changes
There was a fix in #1043 which improves the behavior for non saved filenames. Those are not on disk, but also not empty. This lead to an issue #1059 where actual "empty files" like created with vim-startify or stdin lead to an error. This change fixes this by adapting the order of the tests. It'll print "no file for the current buffer" for empty files.
Closes #1059