small readme cleanup

7459362e · Tyler Neely · 3c9895e2 · 7459362e
Commit 7459362e authored Feb 25, 2015 by Tyler Neely
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Showing with 2 additions and 5 deletions

README.md README.md +2 -5

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--- a/README.md
+++ b/README.md
@@ -42,12 +42,9 @@ extern crate rocksdb;
 use rocksdb::{RocksDBOptions, RocksDB, MergeOperands};
 fn concat_merge(new_key: &[u8], existing_val: Option<&[u8]>,
-    mut operands: &mut MergeOperands) -> Vec<u8> {
+    operands: &mut MergeOperands) -> Vec<u8> {
    let mut result: Vec<u8> = Vec::with_capacity(operands.size_hint().0);
-    match existing_val {
+    existing_val.map(|v| { result.push_all(v) });
-        Some(v) => result.push_all(v),
-        None => (),
-    }
    for op in operands {
        result.push_all(op);
    }