Minor format fix.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129164 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/UsersManual.html b/docs/UsersManual.html
index 661be80..c21a2b1 100644
--- a/docs/UsersManual.html
+++ b/docs/UsersManual.html
@@ -768,7 +768,7 @@
 operator will always return a pointer that does not
 alias any other pointer when the function returns.</dd>
 
-<dt id="opt_ftrap-function=<name>"><b>-ftrap-function=<name></b>: Instruct code
+<dt id="opt_ftrap-function"><b>-ftrap-function=[name]</b>: Instruct code
 generator to emit a function call to the specified function name for
 <tt>__builtin_trap()</tt>.</dt>
 
@@ -778,7 +778,7 @@
 generator will always lower the builtin to a call to the specified function
 regardless of whether the target ISA has a trap instruction. This option is
 useful for environements (e.g. deeply embedded) where a trap cannot be properly
-handled.
+handled.</dd>
 </dl>
 
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