[6.0] 405cc6767 spelling: irix

[Walid Boudebouda]

commit 405cc6767e0b1f2bc28f9c8e19affbfc20036b6f
Author: Josh Soref <2119212+jsoref at users.noreply.github.com>
Date:   Wed Aug 7 08:30:58 2024 -0400

    spelling: irix
    
    Signed-off-by: Josh Soref <2119212+jsoref at users.noreply.github.com>

diff --git a/lib/libvgz/README b/lib/libvgz/README
index 77dad0005..c07b6b6b3 100644
--- a/lib/libvgz/README
+++ b/lib/libvgz/README
@@ -59,7 +59,7 @@ Notes for some targets:
 
 - For Windows DLL versions, please see win32/DLL_FAQ.txt
 
-- For 64-bit Irix, deflate.c must be compiled without any optimization. With
+- For 64-bit IRIX, deflate.c must be compiled without any optimization. With
   -O, one libpng test fails. The test works in 32 bit mode (with the -n32
   compiler flag). The compiler bug has been reported to SGI.