comments: fix typos (#34402)

fix miscellaneous typos

Co-authored-by: norwnd <norwnd>

cli/src/cli.rs

@@ -2430,7 +2430,7 @@ mod tests {
         write_keypair_file(&default_keypair, &default_keypair_file).unwrap();
         let default_signer = DefaultSigner::new("", &default_keypair_file);
 
-        //Test Transfer Subcommand, SOL
+        // Test Transfer Subcommand, SOL
         let from_keypair = keypair_from_seed(&[0u8; 32]).unwrap();
         let from_pubkey = from_keypair.pubkey();
         let from_string = from_pubkey.to_string();

sdk/program/src/loader_v4.rs

@@ -17,7 +17,7 @@ pub const DEPLOYMENT_COOLDOWN_IN_SLOTS: u64 = 750;
 #[repr(u64)]
 #[derive(Debug, PartialEq, Eq, Clone, Copy, AbiExample)]
 pub enum LoaderV4Status {
-    /// Program is in maintanance
+    /// Program is in maintenance
     Retracted,
     /// Program is ready to be executed
     Deployed,

sdk/src/signer/mod.rs

@@ -81,7 +81,7 @@ pub trait Signer {
     }
     /// Fallibly produces an Ed25519 signature over the provided `message` bytes.
     fn try_sign_message(&self, message: &[u8]) -> Result<Signature, SignerError>;
-    /// Whether the impelmentation requires user interaction to sign
+    /// Whether the implementation requires user interaction to sign
     fn is_interactive(&self) -> bool;
 }
 
@@ -94,6 +94,7 @@ where
     }
 }
 
+/// This impl allows using Signer with types like Box/Rc/Arc.
 impl<Container: Deref<Target = impl Signer>> Signer for Container {
     #[inline]
     fn pubkey(&self) -> Pubkey {