Add more rules to .clang-format

src/gfx/main.cpp

@@ -41,7 +41,8 @@ static struct LocalOptions {
 
 static uintmax_t nbErrors;
 
-[[noreturn]] void giveUp() {
+[[noreturn]]
+void giveUp() {
 	fprintf(stderr, "Conversion aborted after %ju error%s\n", nbErrors, nbErrors == 1 ? "" : "s");
 	exit(1);
 }
@@ -82,7 +83,8 @@ void errorMessage(char const *msg) {
 		nbErrors++;
 }
 
-[[noreturn]] void fatal(char const *fmt, ...) {
+[[noreturn]]
+void fatal(char const *fmt, ...) {
 	va_list ap;
 
 	fputs("FATAL: ", stderr);

src/gfx/pal_spec.cpp

@@ -191,7 +191,8 @@ static T readLE(U const *bytes) {
 
 // **Appends** the first line read from `file` to the end of the provided `buffer`.
 // @return true if a line was read.
-[[gnu::warn_unused_result]] static bool readLine(std::filebuf &file, std::string &buffer) {
+[[gnu::warn_unused_result]]
+static bool readLine(std::filebuf &file, std::string &buffer) {
 	assume(buffer.empty());
 	// TODO: maybe this can be optimized to bulk reads?
 	for (;;) {

src/gfx/process.cpp

@@ -34,7 +34,8 @@ public:
 	// Registers a color in the palette.
 	// If the newly inserted color "conflicts" with another one (different color, but same CGB
 	// color), then the other color is returned. Otherwise, `nullptr` is returned.
-	[[nodiscard]] Rgba const *registerColor(Rgba const &rgba) {
+	[[nodiscard]]
+	Rgba const *registerColor(Rgba const &rgba) {
 		decltype(_colors)::value_type &slot = _colors[rgba.cgbColor()];
 
 		if (rgba.cgbColor() == Rgba::transparent) {
@@ -77,7 +78,8 @@ class Png {
 	int nbTransparentEntries;
 	png_bytep transparencyPal = nullptr;
 
-	[[noreturn]] static void handleError(png_structp png, char const *msg) {
+	[[noreturn]]
+	static void handleError(png_structp png, char const *msg) {
 		Png *self = reinterpret_cast<Png *>(png_get_error_ptr(png));
 
 		fatal("Error reading input image (\"%s\"): %s", self->c_str(), msg);

src/gfx/reverse.cpp

@@ -49,7 +49,8 @@ static DefaultInitVec<uint8_t> readInto(std::string const &path) {
 	return data;
 }
 
-[[noreturn]] static void pngError(png_structp png, char const *msg) {
+[[noreturn]]
+static void pngError(png_structp png, char const *msg) {
 	fatal(
 	    "Error writing reversed image (\"%s\"): %s",
 	    static_cast<char const *>(png_get_error_ptr(png)),