[gimp] app-tools: meson build was not installing gimp-debug-tool.

[Jehan <jehanp src gnome org>]

commit f51886b8535791458bc04b206f5f794d41a21ff1
Author: Jehan <jehan girinstud io>
Date:   Mon Dec 30 00:21:33 2019 +0100

    app-tools: meson build was not installing gimp-debug-tool.

 app-tools/meson.build | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/app-tools/meson.build b/app-tools/meson.build
index 40f1add71a..4a29f381bc 100644
--- a/app-tools/meson.build
+++ b/app-tools/meson.build
@@ -1,5 +1,5 @@
 
-gimp_debug_tool = executable('gimp-debug-tool',
+gimp_debug_tool = executable('gimp-debug-tool-' + gimp_app_version,
   'gimp-debug-tool.c',
   include_directories: rootInclude,
   dependencies: [
@@ -12,4 +12,6 @@ gimp_debug_tool = executable('gimp-debug-tool',
     libapp,
     libappwidgets,
   ],
+  install: true,
+  install_dir: get_option('libexecdir')
 )