Correct misspelling in inline comment

Author: jkeenan

regen/warnings.pl

@@ -186,7 +186,7 @@ BEGIN
 
 my %NAME_TO_VALUE; # ('NAME'       => index_number,       ....);
 
-# the experiments were successful (or abandonned),
+# the experiments were successful (or abandoned),
 # so no warning bit is needed anymore
 my %NO_BIT_FOR = map { ( uc $_ => 1, $_ => 1 ) } qw(
   deprecated::smartmatch