all signers: phf
antecedents: vtools_vpatch vdiff_fixes_newline_gcc
press order: 
| vtools_genesis | phf | 
| vdiff_fixes_newline_gcc | phf | 
| keccak | phf | 
| vdiff_keccak | phf | 
| vtools_fixes_bitrate_char_array | phf | 
| vtools_vpatch | phf | 
| vtools_fixes_static_tohex | phf | 
hunks: 
vtools/lib/xalloc.h
vtools/manifest
vtools/src/bits.adb