fix bug post-rebase

(another PR had capitalized a word in output; maybe I should consider a regexp
here...)

Author: pnkfelix

tests/cli.rs

@@ -84,7 +84,7 @@ where WhichTemp: WhichTempDirectory
 
     // The most basic check: does the output actually tell us about the
     // "regressing" commit.
-    let needle = format!("regression in {}", test.expected_sha());
+    let needle = format!("Regression in {}", test.expected_sha());
     // println!("searching for {:?} in stdout: {:?} stderr: {:?}", needle, stdout, stderr);
     assert!(stderr.contains(&needle));
 

tests/ice.rs

@@ -77,7 +77,7 @@ where WhichTemp: WhichTempDirectory
 
     // The most basic check: does the output actually tell us about the
     // "regressing" commit.
-    let needle = format!("regression in {}", INJECTION_COMMIT);
+    let needle = format!("Regression in {}", INJECTION_COMMIT);
     // println!("searching for {:?} in stdout: {:?} stderr: {:?}", needle, stdout, stderr);
     assert!(stderr.contains(&needle));