fix documentation errors in example logical signature.

docs/signatures.tex

@@ -487,10 +487,10 @@ Sig2;Target:0;((0|1|2)>5,2)&(3|1);6b6f74656b;616c61;7a6f6c77;737
 Sig3;Target:0;((0|1|2|3)=2)&(4|1);6b6f74656b;616c61;7a6f6c77;737
 46566616e;deadbeef
 
-Sig4;Target:1,Engine:18-20;((0|1)&(2|3))&4;EP+123:33c06834f04100
+Sig4;Target:1;Engine:18-20;((0|1)&(2|3))&4;EP+123:33c06834f04100
 f2aef7d14951684cf04100e8110a00;S2+78:22??232c2d252229{-15}6e6573
-(63|64)61706528;S+50:68efa311c3b9963cb1ee8e586d32aeb9043e;f9c58d
-cf43987e4f519d629b103375;SL+550:6300680065005c0046006900
+(63|64)61706528;S3+50:68efa311c3b9963cb1ee8e586d32aeb9043e;f9c58
+dcf43987e4f519d629b103375;SL+550:6300680065005c0046006900
     \end{verbatim}
     ClamAV 0.96 introduced support for special macro subsignatures in
     the following format: \verb+${min-max}MACROID$+, where \verb+MACROID+