Builtin-options.md: fix "erros" typo [skip ci]
@@ -36,7 +36,7 @@ Installation options are all relative to the prefix, except:
| sysconfdir | etc | Sysconf data directory |
| localstatedir | var | Localstate data directory |
| sharedstatedir | com | Architecture-independent data directory |
-| werror | false | Treat warnings as erros |
+| werror | false | Treat warnings as errors |
| warnlevel {1, 2, 3} | 1 | Set the warning level. From 1 = lowest to 3 = highest |
| layout {mirror,flat} | mirror | Build directory layout. |
| default-library {shared, static, both} | shared | Default library type. |
