Issue 63271

In the macro library "Tools.UCB" the function "LoadDataFromFile" should
be changed like this:

<now>
Function LoadDataFromFile(FilePath as String, DataList()) as Boolean
	...
	oFile = oUcb.OpenFileReadWrite(FilePath)
	oInputStream.SetInputStream(oFile.GetInputStream)
	...
</now>

<new>
Function LoadDataFromFile(FilePath as String, DataList()) as Boolean
	...
	oFile = oUcb.OpenFileRead(FilePath)     
	oInputStream.SetInputStream(oFile) 
	...
</new>

because on Unix like operating systems the ordinary user has no right to
open files not owned by himself for writing.

Use case:
I wanted to open the file:

<OpenOffice.org1.1.3>/share/psprint/psprint.conf

for making a list of names of predefined printers. I couldn't because the
file is owned by root. With this modification it works and the function
is universally usable for macro writers.

I haven't found the place where it is used from originally, so the spot
in some autopilot or the like making this function necessary should be checked
for regression. From reading the code of the function I see no problem, only
read access is done.