Minor grammatical correction: "This module perform ..." --> "This module
performs ...".
diff --git a/Doc/lib/libbase64.tex b/Doc/lib/libbase64.tex
index dca25d0..a9c3bd1 100644
--- a/Doc/lib/libbase64.tex
+++ b/Doc/lib/libbase64.tex
@@ -4,7 +4,7 @@
\indexii{base64}{encoding}
\index{MIME!base64 encoding}
-This module perform base64 encoding and decoding of arbitrary binary
+This module performs base64 encoding and decoding of arbitrary binary
strings into text strings that can be safely emailed or posted. The
encoding scheme is defined in \rfc{1421} (``Privacy Enhancement for
Internet Electronic Mail: Part I: Message Encryption and