Method Standards.PEM.build()
- Method build
 stringbuild(stringtag,stringdata,void|mapping(string:string)headers,void|stringchecksum)- Description
 Creates a PEM message, wrapped to 64 character lines.
- Parameter 
tag The encapsulation boundary string.
- Parameter 
data The data to be encapsulated.
- Parameter 
headers Optional mapping containing encapsulated headers as name value pairs.
- Parameter 
checksum Optional checksum string, added as per RFC4880.