[niepce] rust: make verbose builds more verbose

[Hubert Figuière <hub src gnome org>]

commit 285f9c935f2c322a8071523aa8a0a4bc9e7d30f7
Author: Hubert Figuière <hub figuiere net>
Date:   Thu Dec 26 12:37:44 2019 -0500

    rust: make verbose builds more verbose

 src/Makefile.am | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 81f1596..a3a8259 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -60,7 +60,7 @@ EXTRA_DIST = \
 CARGO_VERBOSE = $(cargo_verbose_$(V))
 cargo_verbose_ = $(cargo_verbose_$(AM_DEFAULT_VERBOSITY))
 cargo_verbose_0 =
-cargo_verbose_1 = --verbose
+cargo_verbose_1 = -vv
 
 if DEBUG
 CARGO_RELEASE_ARGS=