Non-functional: fix spelling

Co-authored-by: Ryan Carsten Schmidt <[email protected]>

Author: barracuda156

meson.build

@@ -99,7 +99,7 @@ if ['linux', 'android', 'ios', 'darwin'].contains(system)
     add_project_arguments('-DHAVE_LSX', '-DHAVE_LASX', language: 'cpp')
     casm_inc = include_directories(join_paths('codec', 'common', 'loongarch'))
   elif cpu_family == 'riscv64'
-    # We dont't have riscv64-specific optimization for now.
+    # We don't have riscv64-specific optimization for now.
     asm_format = asm_format64
   elif cpu_family == 'ppc'
     # We don't have powerpc-specific optimization for now.