Fix some user facing typos

llvm-svn: 327776
diff --git a/llvm/utils/extract_symbols.py b/llvm/utils/extract_symbols.py
index 96ae24c..93ad2e9 100755
--- a/llvm/utils/extract_symbols.py
+++ b/llvm/utils/extract_symbols.py
@@ -380,7 +380,7 @@
         print("Couldn't find a program to read symbols with", file=sys.stderr)
         exit(1)
     if not is_32bit_windows:
-        print("Couldn't find a program to determing the target", file=sys.stderr)
+        print("Couldn't find a program to determining the target", file=sys.stderr)
         exit(1)
 
     # How we determine which symbols to keep and which to discard depends on