Remove extra character

This extra quote snuch into the comment somehow.  Fix it.

Change-Id: I5aa14e1f43b1de9cabda006f7f9727d611c5aea3
Signed-off-by: Ed Tanous <edtanous@google.com>
diff --git a/include/pam_authenticate.hpp b/include/pam_authenticate.hpp
index 7af28ad..4759e02 100644
--- a/include/pam_authenticate.hpp
+++ b/include/pam_authenticate.hpp
@@ -49,7 +49,7 @@
         // passing off ownership of this to a C application, there aren't a lot
         // of sane ways to avoid it.
 
-        // NOLINTNEXTLINE(cppcoreguidelines-no-malloc)'
+        // NOLINTNEXTLINE(cppcoreguidelines-no-malloc)
         void* passPtr = malloc(appPassSize + 1);
         // NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
         char* pass = reinterpret_cast<char*>(passPtr);