Print version without help information (#27)

Author: ianthomas23

src/main.cpp

@@ -39,7 +39,7 @@ int main(int argc, char** argv)
             std::cout << "git2cpp version " << GIT2CPP_VERSION_STRING << " (libgit2 " << LIBGIT2_VERSION << ")" << std::endl;
         }
 
-        if (app.get_subcommands().size() == 0)
+        if (app.get_subcommands().size() == 0 && !version)
         {
             std::cout << app.help() << std::endl;
         }

test/test_git.py

@@ -8,7 +8,8 @@ def test_version(git2cpp_path, arg):
     p = subprocess.run(cmd, capture_output=True)
     assert p.returncode == 0
     assert p.stderr == b''
-    assert p.stdout.startswith(b'git2cpp ')
+    assert p.stdout.startswith(b'git2cpp version ')
+    assert p.stdout.count(b'\n') == 1
 
 
 def test_error_on_unknown_option(git2cpp_path):