Fix redundant formatting tags

man3/fopen.3

@@ -180,7 +180,7 @@ function.
 The primary use of the
 .BR freopen ()
 function is to change the file associated with a standard text stream
-.IR "" ( stderr ", " stdin ", or " stdout ).
+.RI ( stderr ", " stdin ", or " stdout ).
 .SH "RETURN VALUE"
 Upon successful completion
 .BR fopen (),

man3/printf.3

@@ -295,7 +295,7 @@ flags both appear, the
 .B \&0
 flag is ignored.
 If a precision is given with a numeric conversion
-.BR "" ( d ,
+.RB ( d ,
 .BR i ,
 .BR o ,
 .BR u ,
@@ -337,7 +337,7 @@ The SUSv2 specifies one further flag character.
 .TP
 .B '
 For decimal conversion
-.BR "" ( i ,
+.RB ( i ,
 .BR d ,
 .BR u ,
 .BR f ,
@@ -356,7 +356,7 @@ glibc 2.2 adds one further flag character.
 .TP
 .B I
 For decimal integer conversion
-.BR "" ( i ,
+.RB ( i ,
 .BR d ,
 .BR u )
 the output uses the locale's alternative output digits, if any.
@@ -570,11 +570,11 @@ When 0 is printed with an explicit precision 0, the output is empty.
 The
 .I "unsigned int"
 argument is converted to unsigned octal
-.BR "" ( o ),
+.RB ( o ),
 unsigned decimal
-.BR "" ( u ),
+.RB ( u ),
 or unsigned hexadecimal
-.BR "" ( x
+.RB ( x
 and
 .BR X )
 notation.
@@ -598,7 +598,7 @@ The
 .I double
 argument is rounded and converted in the style
 .if \w'\*(Pm'=0 .ds Pm \(+-
-.BR "" [\-]d \&. ddd e \\*(Pmdd
+.RB [\-]d \&. ddd e \\*(Pmdd
 where there is one digit before the decimal-point character and the number
 of digits after it is equal to the precision; if the precision is missing,
 it is taken as 6; if the precision is zero, no decimal-point character
@@ -617,7 +617,7 @@ digits; if the value is zero, the exponent is 00.
 The
 .I double
 argument is rounded and converted to decimal notation in the style
-.BR "" [\-]ddd \&. ddd,
+.RB [\-]ddd \&. ddd,
 where the number of digits after the decimal-point character is equal to
 the precision specification.
 If the precision is missing, it is taken as
@@ -667,7 +667,7 @@ conversion, the
 .I double
 argument is converted to hexadecimal notation (using the letters abcdef)
 in the style
-.BR "" [\-] 0x h \&. hhhh p \\*(Pmd;
+.RB [\-] 0x h \&. hhhh p \\*(Pmd;
 for
 .B A
 conversion the prefix

man3/stdarg.3

@@ -46,7 +46,7 @@ stdarg, va_start, va_arg, va_end, va_copy \- variable argument lists
 .sp
 .BI "void va_start(va_list " ap ", " last );
 .br
-.BI "" type " va_arg(va_list " ap ", " type );
+.IB type " va_arg(va_list " ap ", " type );
 .br
 .BI "void va_end(va_list " ap );
 .br