tag mistakenly called md5 when representing sha1

[itraviv]

tag number 269 is declared as sha-1 in the rpm source:
original rpm source (line 62)

in the headers section it is identified as "md5":
headers (line 13)

RPMTAG_SIG_BASE = HEADER_SIGBASE (=256)
256+13=269 which is RPMTAG_SHA1HEADER = RPMTAG_SIG_BASE+13, /* s */ (line 62 as linked above)

[pdxjohnny]

Hi @itraviv, I'm a bit confused as to what the desired fix is here.

[itraviv]

i think a rename to 'sha1' will be enough as it'd be just as the spec.
i can make a PR if you want

[pdxjohnny]

Thanks that would be great! But just in case anyone is importing / using the existing variable, can we leave the old declaration too.