binman: Add coverage tools info for Python 3

Test coverage with Python 3 requires a new package. Add details about
this.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/tools/binman/README b/tools/binman/README
index ac193f16cf7b9997b1a389c1b67bd5ca7cd7c725..decca47bbf301fd2fc117191f2a47a0e888597ca 100644 (file)
--- a/tools/binman/README
+++ b/tools/binman/README
@@ -699,7 +699,7 @@ implementations target 100% test coverage. Run 'binman -T' to check this.
 
 To enable Python test coverage on Debian-type distributions (e.g. Ubuntu):
 
-   $ sudo apt-get install python-coverage python-pytest
+   $ sudo apt-get install python-coverage python3-coverage python-pytest
 
 
 Concurrent tests