Update the libm submodule

Lokathor · Lokathor · commit b3f16e25f297 · 2019-09-06T13:48:15.000-06:00
diff --git a/libm b/libm
@@ -1 +1 @@
-Subproject commit 01bee72a93ebaeea2883d0f963174c2b00d4fe68
+Subproject commit 52983bee338ac439bc0f1146d6053955e3b4c33a
