fix(iota-move, move-cli): fix <NAME> uppercase issue, update validati…

…on error message (#4916)

crates/iota-move/src/new.rs

@@ -24,10 +24,11 @@ pub struct New {
 impl New {
     pub fn execute(self, path: Option<&Path>) -> anyhow::Result<()> {
         let name = &self.new.name.to_lowercase();
+        let provided_name = &self.new.name.to_string();
 
         self.new
             .execute(path, [(IOTA_PKG_NAME, IOTA_PKG_PATH)], [(name, "0x0")], "")?;
-        let p = path.unwrap_or_else(|| Path::new(&name));
+        let p = path.unwrap_or_else(|| Path::new(&provided_name));
         let mut w = std::fs::File::create(
             p.join(SourcePackageLayout::Sources.path())
                 .join(format!("{name}.move")),

external-crates/move/crates/move-cli/src/base/new.rs

@@ -49,8 +49,8 @@ impl New {
 
         if !Identifier::is_valid(&name) {
             return Err(anyhow!(
-                "Invalid package name. Package name must start with a lowercase letter \
-                 and consist only of lowercase letters, numbers, and underscores."
+                "Invalid package name. Package name must start with a letter or underscore \
+                 and consist only of letters, numbers, and underscores."
             ));
         }