Merge pull request #404 from ivangreene/patch-1

Remove spaces from example P2SH script

ch04.asciidoc

@@ -650,7 +650,7 @@ script hash = RIPEMD160(SHA256(script))
 The resulting "script hash" is encoded with Base58Check with a version prefix of 5, which results in an encoded address starting with a +3+. An example of a P2SH address is +3F6i6kwkevjR7AsAd4te2YB2zZyASEm1HM+, which can be derived using the Bitcoin Explorer commands +script-encode+, +sha256+, +ripemd160+, and +base58check-encode+ (see <<appdx_bx>>) as follows:
 
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-$ echo dup hash160 [ 89abcdefabbaabbaabbaabbaabbaabbaabbaabba ] equalverify checksig > script
+$ echo dup hash160 [89abcdefabbaabbaabbaabbaabbaabbaabbaabba] equalverify checksig > script
 $ bx script-encode < script | bx sha256 | bx ripemd160 | bx base58check-encode --version 5
 3F6i6kwkevjR7AsAd4te2YB2zZyASEm1HM
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