Fix a ton of comment typos found by codespell.  Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129558
diff --git a/llvm/docs/CommandGuide/llvm-bcanalyzer.pod b/llvm/docs/CommandGuide/llvm-bcanalyzer.pod
index 3b16b5d..9c5021b 100644
--- a/llvm/docs/CommandGuide/llvm-bcanalyzer.pod
+++ b/llvm/docs/CommandGuide/llvm-bcanalyzer.pod
@@ -268,7 +268,7 @@
 
 =item B<Average Instruction Size>
 
-The average number of bytes consumed by the instructions in the funtion. This
+The average number of bytes consumed by the instructions in the function. This
 value is computed by dividing Instruction Size by Instructions.
 
 =item B<Bytes Per Instruction>