Modify the awk script as follows:

awk ' BEGIN { prev=";" }
/ \"CREATE / { N=1; }
/ \"ALTER / { N=1; }
/ \"ANALYZE / { N=1; }
/ \"GRANT / { N=1; }
/ \"COMMENT / { N=1; }
/ \"AUDIT / { N=1; }
N==1 { printf "/\n\n"; N++ } --> removed first "\n" from printf
/\"$/ { prev=""
if (N==0) next;
s=index( $0, "\"" );
if ( s!=0 ) {
printf "%s",substr( $0,s+1,length( substr($0,s+1))-1 )
prev=substr($0,length($0)-1,1 );
}
if (length($0)<78) printf( "\n" );
}' $*

-amar