Improved arg help messages

src/main.rs

@@ -30,7 +30,7 @@ fn main() {
             .short("f")
             .long("fumo")
             .value_name("fumofile")
-            .help("choose another fumofumo to print")
+            .help("Choose another fumofumo to print")
             .takes_value(true)
             .required(false)
             .default_value(FUMO_DEFAULT)
@@ -40,7 +40,7 @@ fn main() {
             .short("d")
             .long("fumofiles_directory")
             .value_name("fumofiles_directory_path")
-            .help("look for fumofiles in given directory instead")
+            .help("Look for fumofiles in given directory")
             .takes_value(true)
             .required(false)
             .default_value(DEFAULT_FUMOFILES_DIR)
@@ -49,7 +49,7 @@ fn main() {
             Arg::with_name("list_fumos")
             .short("l")
             .long("list_fumos")
-            .help("lists all fumofiles in the default directory instead")
+            .help("Lists all fumofiles in the default directory instead")
             .takes_value(false)
             .required(false)
         )
@@ -57,7 +57,7 @@ fn main() {
             Arg::with_name("message")
             .short("m")
             .long("message")
-            .help("set a message to print")
+            .help("Message to print")
             .takes_value(true)
             .index(1)
             .multiple(true)