Fix uint32 type name.
diff --git a/src/gflags.cc b/src/gflags.cc
index a05d801..1619e9c 100644
--- a/src/gflags.cc
+++ b/src/gflags.cc
@@ -409,7 +409,7 @@
   static const char types[] =
       "bool\0xx"
       "int32\0x"
-      "uin32\0x"
+      "uint32\0"
       "int64\0x"
       "uint64\0"
       "double\0"