fixed manual (thanks to T.ASAKURA)

manual/luatex-backend.tex

@@ -627,7 +627,7 @@ pdfe.unencrypt(<pdfe document>,userpassword,ownerpassword)
 
 \stopsubsection
 
-\startsubsection[title={\type {getsize}, \type {getversion}, \type {getnofobjects}, \type {getnofpages}}]
+\startsubsection[title={\type {getsize}, \type {getversion}, \type {getnofobjects}, \type {getnofpages}, \type{getmemoryusage}}]
 
 \libindex {getsize}
 \libindex {getversion}
@@ -641,7 +641,7 @@ bytes = getsize(<pdfe document>)
 major, minor = getversion(<pdfe document>)
 n = getnofobjects(<pdfe document>)
 n = getnofpages(<pdfe document>)
-bytes, waste = getnofpages(<pdfe document>)
+bytes, waste  = getmemoryusage(<pdfe document>)
 \stoptyping
 
 \stopsubsection
@@ -797,7 +797,7 @@ type, value, detail = getfromarray(<pdfe array>,index)
 \DB type       \BC meaning    \BC value            \BC detail \NC \NR
 \NC \type {0}  \NC none       \NC nil              \NC \NC \NR
 \NC \type {1}  \NC null       \NC nil              \NC \NC \NR
-\NC \type {2}  \NC boolean    \NC boolean          \NC \NC \NR
+\NC \type {2}  \NC boolean    \NC 1 or 0           \NC \NC \NR
 \NC \type {3}  \NC integer    \NC integer          \NC \NC \NR
 \NC \type {4}  \NC number     \NC float            \NC \NC \NR
 \NC \type {5}  \NC name       \NC string           \NC \NC \NR

manual/luatex-tex.tex

@@ -1957,15 +1957,16 @@ and|/|or console.
 \libindex{write}
 
 \startfunctioncall
-texio.write(<string> target, <string> s, ...)
+texio.write(<string> target | <integer> stream, <string> s, ...)
 texio.write(<string> s, ...)
 \stopfunctioncall
 
 Without the \type {target} argument, writes all given strings to the same
 location(s) \TEX\ writes messages to at this moment. If \prm {batchmode} is in
 effect, it writes only to the log, otherwise it writes to the log and the
-terminal. The optional \type {target} can be one of three possibilities: \type
-{term}, \type {log} or \type {term and log}.
+terminal. The optional \type {target} can be one of four  possibilities: \type
+{term}, \type {log}, \type {term and log} or a valid integer of a stream 
+opened for writing.
 
 Note: If several strings are given, and if the first of these strings is or might
 be one of the targets above, the \type {target} must be specified explicitly to