Which is really weird, cos I don't see the same effect when I run the following D code:

import std.file;

int main( char[][] args ) {
    for( int i=0; i<99; i++ ) printf( "123456789 " );
    printf( "\n" );
    for( int i=0; i<125; i++ ) printf( "xx\t" );
    printf( "\n" );
    return 0;
}
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Nor the equivalent C code:

#include <stdlib.h>

int main( int argc, char **argv ) {
    int i;
    for( i=0; i<99; i++ ) printf( "123456789 " );
    printf( "\n" );
    for( i=0; i<125; i++ ) printf( "xx\t" );
    printf( "\n" );
    return 0;
}
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Nor this version of the perl code:

for( $i=0; $i<99; $i++ ){ 
    printf( "123456789 " ) 
}
printf( "\n" );
for( $i=0; $i<125; $i++ ){ 
    printf( "xx\t" ) 
}
printf( "\n" );;
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It only seems to happen when I use:

print join ' ', ('123456789') x 99; 
print join "\t", ('xx') x 125;;
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Which makes about as much sense as a chocolate teapot?