Issue #21042: Return full path in ctypes.util.find_library() on Linux

Patch by Tamás Bence Gedai.
diff --git a/Misc/ACKS b/Misc/ACKS
index 6d8fcf8..0a67f39 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -487,6 +487,7 @@
 Stephen M. Gava
 Xavier de Gaye
 Harry Henry Gebel
+Tamás Bence Gedai
 Marius Gedminas
 Jan-Philip Gehrcke
 Thomas Gellekum