[NFC] Strip trailing whitespace from libc++
diff --git a/libcxx/test/std/strings/strings.erasure/erase.pass.cpp b/libcxx/test/std/strings/strings.erasure/erase.pass.cpp
index 5013300..26d6b86 100644
--- a/libcxx/test/std/strings/strings.erasure/erase.pass.cpp
+++ b/libcxx/test/std/strings/strings.erasure/erase.pass.cpp
@@ -11,7 +11,7 @@
 
 // template <class charT, class traits, class Allocator, class U>
 //   void erase(basic_string<charT, traits, Allocator>& c, const U& value);
-  
+
 
 #include <string>
 #include <optional>