Consistently use comment_prefix in example code.

Author: ltratt

README.md

@@ -27,6 +27,8 @@ fn main() {
         .test_dir("examples/rust_lang_tester/lang_tests")
         // Only use files named `*.rs` as test files.
         .test_file_filter(|p| p.extension().unwrap().to_str().unwrap() == "rs")
+        // Treat lines beginning with "#" as comments.
+        .comment_prefix("#")
         // Extract the first sequence of commented line(s) as the tests.
         .test_extract(|p| {
             read_to_string(p)

examples/rust_lang_tester/run_tests.rs

@@ -17,10 +17,10 @@ fn main() {
     let tempdir = TempDir::new().unwrap();
     LangTester::new()
         .test_dir("examples/rust_lang_tester/lang_tests")
-        // Treat top-level lines beginning with "#" as comments.
-        .comment_prefix("#")
         // Only use files named `*.rs` as test files.
         .test_path_filter(|p| p.extension().and_then(|x| x.to_str()) == Some("rs"))
+        // Treat top-level lines beginning with "#" as comments.
+        .comment_prefix("#")
         // Extract the first sequence of commented line(s) as the tests.
         .test_extract(|p| {
             read_to_string(p)

src/lib.rs

@@ -24,6 +24,8 @@
 //!         .test_dir("examples/rust_lang_tester/lang_tests")
 //!         // Only use files named `*.rs` as test files.
 //!         .test_path_filter(|p| p.extension().and_then(|x| x.to_str()) == Some("rs"))
+//!         // Treat lines beginning with "#" as comments.
+//!         .comment_prefix("#")
 //!         // Extract the first sequence of commented line(s) as the tests.
 //!         .test_extract(|p| {
 //!             read_to_string(p)