fixups on readFileAllocZ

Author: dasimmet

src/buildrunner/BuildSerialize.zig

@@ -329,13 +329,10 @@ else
 
 pub fn minimumZigVersion(b: *Build) !?[]const u8 {
     const zon_path = try std.fs.path.join(b.allocator, &.{ b.build_root.path.?, "build.zig.zon" });
-    const zon_file = std.fs.cwd().readFileAllocOptions(
-        b.allocator,
+    const zon_file = @import("zonparse.zig").cwdReadFileAllocZ(
         zon_path,
+        b.allocator,
         std.math.maxInt(u32),
-        null,
-        align_one,
-        0,
     ) catch |err| switch (err) {
         error.FileNotFound => return null,
         else => return err,

src/buildrunner/zonparse.zig

@@ -42,20 +42,20 @@ pub fn cwdReadFileAllocZ(
     max_bytes: usize,
 ) ![:0]const u8 {
     const cwd = std.fs.cwd();
-    if (comptime later_than_zig_15) {
+    if (comptime later_than_zig_14) {
         return cwd.readFileAllocOptions(
-            subpath,
             allocator,
-            std.Io.Limit.limited(max_bytes),
+            subpath,
+            max_bytes,
+            null,
             align_one,
             0,
         );
     } else {
         return cwd.readFileAllocOptions(
-            allocator,
             subpath,
-            max_bytes,
-            null,
+            allocator,
+            std.Io.Limit.limited(max_bytes),
             align_one,
             0,
         );