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Use of uninitialized value in range (or flip)

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$ perl -w -e 'my $x = 1..3'
Use of uninitialized value in range (or flip) at -e line 1.
$

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$ perl -w -e 'my $x = 1..3' -Mdiagnostics
$

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```
use warnings FATAL => 'all';
```

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$ echo 'Use of uninitialized value in range (or flip)' | splain
Use of uninitialized value in range (or flip) (#1)
...
    usually optimized into "that " . $foo, and the warning will refer 
+to
    the concatenation (.) operator, even though there is no . in your
    program.

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$ perl -w -e 'print ">>>$.<<<\n"'
Use of uninitialized value in concatenation (.) or string at -e line 1
+.
>>><<<
$

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$ perl -w -e 'print ">>>$.<<<\n"' -Mdiagnostics
>>>0<<<
$

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```
local $.;
```

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--- diagnostics.pm      2009-06-15 04:21:42.000000000 -0400
+++ diagnostics.pm.fix  2009-12-05 10:29:53.096561000 -0500
...

 my $standalone;
 my(%HTML_2_Troff, %HTML_2_Latin_1, %HTML_2_ASCII_7);

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$ perl -v

This is perl, v5.10.0 built for x86_64-linux