Description of Problem: Even after specification of '--format tiff' in an absence of an explicitely given format for output file names results are named out1.pnm, out2.pnm, .... and so on. This while a manual page claims that a default format is "out%d.tif" always. Results with that flag are indeed TIFF files suffix suggestions notwithstanding.
Created attachment 38104 [details] a trivial patch which adjusts suffixes to formats
I have used the patch from CVS for this.
Fixed in 1.0.6-3.