First batch of signature documentation changes; using default argument syntax where applicable.
diff --git a/Doc/library/binascii.rst b/Doc/library/binascii.rst
index 83dcb67..dffdd81 100644
--- a/Doc/library/binascii.rst
+++ b/Doc/library/binascii.rst
@@ -49,14 +49,14 @@
should be at most 57 to adhere to the base64 standard.
-.. function:: a2b_qp(string[, header])
+.. function:: a2b_qp(string, header=False)
Convert a block of quoted-printable data back to binary and return the binary
data. More than one line may be passed at a time. If the optional argument
*header* is present and true, underscores will be decoded as spaces.
-.. function:: b2a_qp(data[, quotetabs, istext, header])
+.. function:: b2a_qp(data, quotetabs=False, istext=True, header=False)
Convert binary data to a line(s) of ASCII characters in quoted-printable
encoding. The return value is the converted line(s). If the optional argument