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u8int as well and some more man page changes

--- a/dfc.1

+++ b/dfc.1

@@ -47,15 +47,28 @@

 typedef's are parsed but do not have any impact; Any struct defined

 is expected to be typedef'd.

 .PP

-Struct member types must be one of 

+Struct member types must be one of

 .BR u64int ,

 .BR u32int ,

 .BR u16int ,

+.BR u8int ,

 .BR uchar ,

-or may refer to another struct defined previously.

+or a struct previously defined.

+.SH OUTPUT

+For each struct defined

+.I dfc

+outputs two functions. For a struct called

+.L Block

+the following functions are generated:

+.IP

+.EX

+long getblock(Block *dst, uchar *src);

+long putblock(uchar *dst, Block *src);

+.EE

+.PP

+The return value for each is the total number

+of bytes consumed or generated respectively.

 .SH SOURCE

 .B /sys/src/cmd/dfc.y

-.SH SEE ALSO

-.IR yacc (1)

 .SH BUGS

 Calling the input grammer a subset of C is generous.

--- a/dfc.y

+++ b/dfc.y

@@ -502,6 +502,8 @@

 		return TYPEDEF;

 	if(strcmp(buf, "uchar") == 0)

 		return UCHAR;

+	if(strcmp(buf, "u8int") == 0)

+		return UCHAR;

 	if(strcmp(buf, "u16int") == 0)

 		return U16;

 	if(strcmp(buf, "u32int") == 0)