nimble publish when parsing tags, if whitespace strutils.split() puts empty string in packages.json

[bloomingchad]

when you publish using nimble, it asks for tags. if a newbie user is typing the tags,

for example: "tag1 tag2 tag3 tag4 "<<<(this last char before ")
the trailing white space at the last will be parsed as a empty string [""] into tags field of packages.json

this will result in a ci error where the package_scanner.nim will return
at line 157: logPackageError(displayName & " has empty tags")

wasted ci resources, redundant workflow approvals, wasted time and makes us look buggy.

[Araq]

If only the stdlib had something like splitWhitespace...