fix a bunch of comment typos found by codespell.  Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129559
diff --git a/clang/docs/tools/clang.pod b/clang/docs/tools/clang.pod
index 4160f2e..50b0199 100644
--- a/clang/docs/tools/clang.pod
+++ b/clang/docs/tools/clang.pod
@@ -53,7 +53,7 @@
 
 This stage translates an AST into low-level intermediate code (known as "LLVM
 IR") and ultimately to machine code.  This phase is responsible for optimizing
-the generated code and handling target-specfic code generation.  The output of
+the generated code and handling target-specific code generation.  The output of
 this stage is typically called a ".s" file or "assembly" file.
 
 Clang also supports the use of an integrated assembler, in which the code