Use AbstractString in signature instead of String. (#208)

Author: maleadt

Project.toml

@@ -1,6 +1,6 @@
 name = "GitHub"
 uuid = "bc5e4493-9b4d-5f90-b8aa-2b2bcaad7a26"
-version = "5.8.0"
+version = "5.8.1"
 
 [deps]
 Base64 = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"

src/repositories/commits.jl

@@ -28,12 +28,12 @@ namefield(commit::Commit) = commit.sha
 # repo #
 #------#
 
-@api_default function commits(api::GitHubAPI, repo::Union{Repo,String}; options...)
+@api_default function commits(api::GitHubAPI, repo::Union{Repo,AbstractString}; options...)
     results, page_data = gh_get_paged_json(api, "/repos/$(name(repo))/commits"; options...)
     return map(Commit, results), page_data
 end
 
-@api_default function commit(api::GitHubAPI, repo, sha::Union{Commit,String}; options...)
+@api_default function commit(api::GitHubAPI, repo, sha::Union{Commit,AbstractString}; options...)
     result = gh_get_json(api, "/repos/$(name(repo))/commits/$(name(sha))"; options...)
     return Commit(result)
 end