flags: further cleanup after Zig 0.10

Long live the self hosted compiler!

 common/flags.zig   | 7 +++----
 river/main.zig     | 4 +---
 riverctl/main.zig  | 4 +---
 rivertile/main.zig | 4 +---
 4 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/common/flags.zig b/common/flags.zig
index cde7cad..1e34ce1 100644
--- a/common/flags.zig
+++ b/common/flags.zig
@@ -69,8 +69,7 @@ pub fn parser(comptime Arg: type, comptime flags: []const Flag) type {
             var result_flags: Result.Flags = .{};
 
             var i: usize = 0;
-            while (i < args.len) : (i += 1) {
-                var parsed_flag = false;
+            outer: while (i < args.len) : (i += 1) {
                 inline for (flags) |flag| {
                     if (mem.eql(u8, "-" ++ flag.name, mem.span(args[i]))) {
                         switch (flag.kind) {
@@ -85,10 +84,10 @@ pub fn parser(comptime Arg: type, comptime flags: []const Flag) type {
                                 @field(result_flags, flag.name) = mem.span(args[i]);
                             },
                         }
-                        parsed_flag = true;
+                        continue :outer;
                     }
                 }
-                if (!parsed_flag) break;
+                break;
             }
 
             return Result{
diff --git a/river/main.zig b/river/main.zig
index ac7be9c..c030a8e 100644
--- a/river/main.zig
+++ b/river/main.zig
@@ -42,14 +42,12 @@ const usage: []const u8 =
 pub var server: Server = undefined;
 
 pub fn main() anyerror!void {
-    // This line is here because of https://github.com/ziglang/zig/issues/7807
-    const argv: [][*:0]const u8 = os.argv;
     const result = flags.parser([*:0]const u8, &.{
         .{ .name = "h", .kind = .boolean },
         .{ .name = "version", .kind = .boolean },
         .{ .name = "c", .kind = .arg },
         .{ .name = "log-level", .kind = .arg },
-    }).parse(argv[1..]) catch {
+    }).parse(os.argv[1..]) catch {
         try io.getStdErr().writeAll(usage);
         os.exit(1);
     };
diff --git a/riverctl/main.zig b/riverctl/main.zig
index bffd20e..b3861c3 100644
--- a/riverctl/main.zig
+++ b/riverctl/main.zig
@@ -63,12 +63,10 @@ pub fn main() !void {
 }
 
 fn _main() !void {
-    // This line is here because of https://github.com/ziglang/zig/issues/7807
-    const argv: [][*:0]const u8 = os.argv;
     const result = flags.parser([*:0]const u8, &.{
         .{ .name = "h", .kind = .boolean },
         .{ .name = "version", .kind = .boolean },
-    }).parse(argv[1..]) catch {
+    }).parse(os.argv[1..]) catch {
         try io.getStdErr().writeAll(usage);
         os.exit(1);
     };
diff --git a/rivertile/main.zig b/rivertile/main.zig
index 293ffeb..6b9c458 100644
--- a/rivertile/main.zig
+++ b/rivertile/main.zig
@@ -303,8 +303,6 @@ const Output = struct {
 };
 
 pub fn main() !void {
-    // https://github.com/ziglang/zig/issues/7807
-    const argv: [][*:0]const u8 = os.argv;
     const result = flags.parser([*:0]const u8, &[_]flags.Flag{
         .{ .name = "h", .kind = .boolean },
         .{ .name = "version", .kind = .boolean },
@@ -313,7 +311,7 @@ pub fn main() !void {
         .{ .name = "main-location", .kind = .arg },
         .{ .name = "main-count", .kind = .arg },
         .{ .name = "main-ratio", .kind = .arg },
-    }).parse(argv[1..]) catch {
+    }).parse(os.argv[1..]) catch {
         try std.io.getStdErr().writeAll(usage);
         os.exit(1);
     };