AquaticPrime::sign(): Remove `unwrap`s from key "0x" removal

Gets rid of `unwrap`s and allows us to explicitly remove only "0x".

Still on Rust 1.28 for now. Will need to change this to
`trim_start_matches` for Rust v1.30.

1 files changed, 2 insertions, 2 deletions

diff --git a/license-generator/aquatic-prime/src/lib.rs b/license-generator/aquatic-prime/src/lib.rs
index 14a2bef..26666a1 100644
--- a/license-generator/aquatic-prime/src/lib.rs
+++ b/license-generator/aquatic-prime/src/lib.rs
@@ -35,8 +35,8 @@ impl<'a> AquaticPrime<'a> {
             .collect::<Vec<&str>>()
             .concat();
 
-        let public_key = self.public_key.get(2..).unwrap();
-        let private_key = self.private_key.get(2..).unwrap();
+        let public_key = self.public_key.trim_left_matches("0x");
+        let private_key = self.private_key.trim_left_matches("0x");
 
         let public_key = BigNum::from_hex_str(public_key)
             .chain_err(|| "public key could not be converted to BigNum")?;