Update doc/manual/src/development/testing.md

Co-authored-by: Valentin Gagarin <[email protected]>

doc/manual/src/development/testing.md

@@ -177,7 +177,7 @@ Timeout:            0
 Full log written to /home/jcericson/src/nix/master/build/meson-logs/testlog.txt
 ```
 
-The `--verbose` flag will make meson also show the console output of each print for easier debugging.
+The `--verbose` flag will make Meson also show the console output of each test for easier debugging.
 The test script will then be traced with `set -x` and the output displayed as it happens,
 regardless of whether the test succeeds or fails.