Fix is_using_fission docs
RELNOTES: None.
@@ -970,10 +970,10 @@ The following is a reference of `CcToolchainConfigInfo` build variables.
<tr>
<td><strong><code>is_using_fission</code></strong>
</td>
- <td>link</td>
- <td>Presence of this variable indicates that files were
- compiled with fission. Debug info is in <code>.dwo</code> files instead
- of <code>.o</code> files and the linker needs to know this.
+ <td>compile, link</td>
+ <td>Presence of this variable indicates that fission (per-object debug info)
+ is activated. Debug info will be in <code>.dwo</code> files instead
+ of <code>.o</code> files and the compiler and linker need to know this.
</td>
</tr>
</table>
