[gndoc] Update GN build arguments documentation

Roller-URL: https://ci.chromium.org/b/8850040545248057856
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Change-Id: I2bece73b5764f6bf4932589630d0de6e872dcea1
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/515161
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diff --git a/docs/gen/build_arguments.md b/docs/gen/build_arguments.md
index e665ec3..2654797 100644
--- a/docs/gen/build_arguments.md
+++ b/docs/gen/build_arguments.md
@@ -61,14 +61,14 @@
 
 **Current value (from the default):** `false`
 
-From [//third_party/mesa/src/intel/vulkan/BUILD.gn:27](https://fuchsia.googlesource.com/third_party/mesa/+/3d87b35ce3f7a7911acc56cd0bcc1b40d2388fb2/src/intel/vulkan/BUILD.gn#27)
+From [//third_party/mesa/src/intel/vulkan/BUILD.gn:27](https://fuchsia.googlesource.com/third_party/mesa/+/b8c7f440b4278dd181fb735d7e58d09d33d07b40/src/intel/vulkan/BUILD.gn#27)
 
 ### anv_use_max_ram
 Give maximum possible memory to Vulkan heap
 
 **Current value (from the default):** `false`
 
-From [//third_party/mesa/src/intel/vulkan/BUILD.gn:30](https://fuchsia.googlesource.com/third_party/mesa/+/3d87b35ce3f7a7911acc56cd0bcc1b40d2388fb2/src/intel/vulkan/BUILD.gn#30)
+From [//third_party/mesa/src/intel/vulkan/BUILD.gn:30](https://fuchsia.googlesource.com/third_party/mesa/+/b8c7f440b4278dd181fb735d7e58d09d33d07b40/src/intel/vulkan/BUILD.gn#30)
 
 ### asan_default_options
 Default [AddressSanitizer](https://clang.llvm.org/docs/AddressSanitizer.html)