bstr: update everything to bstr 0.2

grep-searcher/src/testutil.rs

@@ -1,7 +1,7 @@
 use std::io::{self, Write};
 use std::str;
 
-use bstr::B;
+use bstr::ByteSlice;
 use grep_matcher::{
     LineMatchKind, LineTerminator, Match, Matcher, NoCaptures, NoError,
 };
@@ -94,7 +94,7 @@ impl Matcher for RegexMatcher {
             }
             // Make it interesting and return the last byte in the current
             // line.
-            let i = B(haystack)
+            let i = haystack
                 .find_byte(self.line_term.unwrap().as_byte())
                 .map(|i| i)
                 .unwrap_or(haystack.len() - 1);