fix comments

src/tools/wasm-reduce.cpp

diff --git a/src/tools/wasm-reduce.cpp b/src/tools/wasm-reduce.cpp
index 4bb4b6f..7bda732 100644
--- a/src/tools/wasm-reduce.cpp
+++ b/src/tools/wasm-reduce.cpp
@@ -1248,7 +1248,7 @@
   }
 
   std::cerr << "|checking that command has expected behavior on canonicalized "
-               "(read-written) binary\n";
+               "(read-written) input\n";
   {
     // read and write it
     auto cmd = Path::getBinaryenBinaryTool("wasm-opt") + " " + input + " -o " +
@@ -1258,7 +1258,7 @@
     }
     ProgramResult readWrite(cmd);
     if (readWrite.failed()) {
-      stopIfNotForced("failed to read and write the binary", readWrite);
+      stopIfNotForced("failed to read and write the input", readWrite);
     } else {
       ProgramResult result(command);
       if (result != expected) {