Bruce Mitchener: Typo fixes.

llvm-svn: 175275
diff --git a/libcxxabi/src/cxa_exception_storage.cpp b/libcxxabi/src/cxa_exception_storage.cpp
index 2c269c7..b0b5524 100644
--- a/libcxxabi/src/cxa_exception_storage.cpp
+++ b/libcxxabi/src/cxa_exception_storage.cpp
@@ -75,7 +75,7 @@
         }
 
     // Note that this implementation will reliably return NULL if not
-    // preceeded by a call to __cxa_get_globals().  This is an extension
+    // preceded by a call to __cxa_get_globals().  This is an extension
     // to the Itanium ABI and is taken advantage of in several places in
     // libc++abi.
     __cxa_eh_globals * __cxa_get_globals_fast () {