add blank line after build constraint in unix implementation

ilyapashuk · web-flow · commit 55375166bf04 · 2020-01-23T20:57:59.000+03:00
by the specification the blank line required bitwin build constraint and other data to build constraint be processed correctly.
diff --git a/shellcode_unix.go b/shellcode_unix.go
@@ -1,4 +1,5 @@
 // +build linux freebsd darwin
+
 package shellcode
 
 /*
