[patchbomb] prepend leading zeros in the "[PATCH N of M]" string Without this patch, if one tries to send a patch bomb with more than 9 patches, the resulting subjects are not easily alphabetically sortable. For example: ... [PATCH 9 of 10] [PATCH 10 of 10] This patch prepends as many leading zeros as necessary. E.g., [PATCH 09 of 10] or [PATCH 009 of 100]

merged now fully working base85 codec, though currently unused.

merge with upstream

Handle odd-sized base85 input and output

Put in backslash again, it was needed to disable an asciidoc macro. Backed out changeset c05b0cc6b1485bb240e118a2be9e1d52bb25fd65

Corrected typo in date format, found by Rob Landley.