Format files and fix Clippy lints

Author: sondr3

src/main.rs

@@ -8,8 +8,8 @@ use git2::{Commit, Repository};
 use std::cmp::PartialEq;
 use std::collections::HashMap;
 use std::env;
-use std::path::PathBuf;
 use std::error::Error;
+use std::path::PathBuf;
 use structopt::clap::AppSettings;
 use structopt::StructOpt;
 
@@ -22,7 +22,11 @@ static CURSES: &str = include_str!("words.txt");
     raw(global_settings = "&[AppSettings::ColoredHelp]")
 )]
 struct Cli {
-    #[structopt(name = "directory", help = "Directory to parse commits", parse(from_os_str))]
+    #[structopt(
+        name = "directory",
+        help = "Directory to parse commits",
+        parse(from_os_str)
+    )]
     directory: Option<PathBuf>,
 }
 
@@ -65,12 +69,11 @@ impl Author {
 fn main() -> Result<(), Box<Error>> {
     let opt = Cli::from_args();
     let curses: Vec<&str> = CURSES.lines().collect();
-    let path;
-    if opt.directory.is_none() {
-        path = env::current_dir()?;
+    let path = if opt.directory.is_none() {
+        env::current_dir()?
     } else {
-        path = PathBuf::from(opt.directory.unwrap());
-    }
+        opt.directory.unwrap()
+    };
     let repo = Repository::open(path)?;
     let mut revwalk = repo.revwalk()?;
     let mut commits: Vec<Commit> = Vec::new();