bench: fix build - add missing 'read_buf_cap'

bench/twitter/main.zig

@@ -1,13 +1,15 @@
 const std = @import("std");
 const dom = @import("simdjzon").dom;
 
+pub const read_buf_cap = std.mem.page_size;
+
 pub fn main() !u8 {
     var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
     const allocator = arena.allocator();
     const args = try std.process.argsAlloc(allocator);
-    if(args.len != 2) {
-      std.debug.print("USAGE: ./simdjson <file.json>\n", .{});
+    if (args.len != 2) {
+        std.debug.print("USAGE: ./simdjson <file.json>\n", .{});
     }
     var parser = try dom.Parser.initFile(allocator, args[1], .{});
     defer parser.deinit();
@@ -18,16 +20,16 @@ pub fn main() !u8 {
     const statuses = try parser.element().at_pointer("/statuses");
     const array = try statuses.get_array();
     var i: usize = 0;
-    while(array.at(i)) |status| : (i += 1) {
+    while (array.at(i)) |status| : (i += 1) {
         _ = status; // autofix
-      // const id = try status.at_pointer("/id");      
-      // std.debug.print("{}\n", .{try id.get_int64()});
+        // const id = try status.at_pointer("/id");
+        // std.debug.print("{}\n", .{try id.get_int64()});
     }
     // std.debug.print("i={}\n", .{i});
     if (i != 100) {
-      std.debug.print("error. expected i=100. found i={}\n", .{i});
-      return 1;
+        std.debug.print("error. expected i=100. found i={}\n", .{i});
+        return 1;
     }
 
     return 0;
-}
+}