Change summary to full message (#6591)

Signed-off-by: jolheiser <john.olheiser@gmail.com>

routers/api/v1/repo/commits.go

@@ -109,7 +109,7 @@ func GetSingleCommit(ctx *context.APIContext) {
 				},
 				Date: commit.Committer.When.Format(time.RFC3339),
 			},
-			Message: commit.Summary(),
+			Message: commit.Message(),
 			Tree: &api.CommitMeta{
 				URL: ctx.Repo.Repository.APIURL() + "/trees/" + commit.ID.String(),
 				SHA: commit.ID.String(),