update unit tests for type conversions

Author: mschuchard

src/github_issue.rs

@@ -408,8 +408,8 @@ mod tests {
                 None,
                 "my_org",
                 "my_repo",
-                Some(String::from("my issue")),
-                Some(String::from("my body")),
+                Some("my issue"),
+                Some("my body"),
                 Some(vec![String::from("label")]),
                 Some(vec![String::from("assignee")]),
                 None,
@@ -420,8 +420,8 @@ mod tests {
                 pat: None,
                 owner: "my_org",
                 repo: "my_repo",
-                title: Some(String::from("my issue")),
-                body: Some(String::from("my body")),
+                title: Some("my issue"),
+                body: Some("my body"),
                 labels: Some(vec![String::from("label")]),
                 assignees: Some(vec![String::from("assignee")]),
                 number: None,