Fixed docstring typo, reported by Skip Montanaro <skip@mojam.com>.
diff --git a/Modules/cStringIO.c b/Modules/cStringIO.c
index 557545f..4c187fe 100644
--- a/Modules/cStringIO.c
+++ b/Modules/cStringIO.c
@@ -56,7 +56,7 @@
"\n"
"This module provides a simple useful replacement for\n"
"the StringIO module that is written in C. It does not provide the\n"
-"full generality if StringIO, but it provides enough for most\n"
+"full generality of StringIO, but it provides enough for most\n"
"applications and is especially useful in conjuction with the\n"
"pickle module.\n"
"\n"