fix documentation typo for default_library option [skip ci]
@@ -42,7 +42,7 @@ Installation options are all relative to the prefix, except:
| werror | false | Treat warnings as errors |
| warning_level {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. |
+| default_library {shared, static, both} | shared | Default library type. |
| backend {ninja, vs,<br>vs2010, vs2015, vs2017, xcode} | | Backend to use (default: ninja). |
| stdsplit | | Split stdout and stderr in test logs. |
| errorlogs | | Whether to print the logs from failing tests. |
