make docu for %r converer more specific about %.2r versus %2r
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@ -370,6 +370,9 @@ With the <code>0</code> flag, the value is unsigned, otherwise signed.
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In output, the <em>precision</em> (or sizeof(long) whatever is less) least
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significant bytes of the value are sign extended or zero extended
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(depending on the <code>0</code> flag) to <em>width</em> bytes.
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The default for <em>precision</em> is 1. Thus if you do not specify
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the <em>precision</em>, only the least significant byte is written!
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It is common error to write <code>out "%2r";</code> instead of <code>out "%.2r";</code>.
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</p>
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<p>
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In input, <em>width</em> bytes are read and put into the value.
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@ -380,7 +383,7 @@ the value is sign extended or zero extended, depending on the
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<code>0</code> flag.
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</p>
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<p>
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Example: <code>out "%.2r"</code>
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Examples: <code>out "%.2r"; in "%02r";</code>
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</p>
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<a name="rawdouble"></a>
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