Fix Error message in falloc/error.go

eclipseorequested to merge
eclipseo/fileutil:patch-1 into master

In Go 1.15 rc 1, passing e to Sprintf directly results in an error:

# modernc.org/fileutil/falloc
./error.go:87:9: Sprintf format %s with arg e causes recursive Error method call
FAIL	modernc.org/fileutil/falloc [build failed]

Signed-off-by: Robert-André Mauchin zebob.m@gmail.com

Merge request reports