Tidy up some convert_string_internal error cases, found by Andrew Bartlett.
tree5c719571c1bc92288d2c559fea0cf44e4930ae1d
-rw-r--r-- 2220 .gitignore
-rw-r--r-- 35147 COPYING
-rw-r--r-- 1126 MAINTAINERS
-rw-r--r-- 2558 Manifest
-rw-r--r-- 188 PFIF.txt
-rw-r--r-- 8600 README
-rw-r--r-- 6448 README.Coding
-rw-r--r-- 0 Read-Manifest-Now
-rw-r--r-- 1087 Roadmap
-rw-r--r-- 4351 WHATSNEW.txt
drwxr-xr-x - docs-xml
drwxr-xr-x - examples
drwxr-xr-x - packaging
drwxr-xr-x - pcp
drwxr-xr-x - release-scripts
drwxr-xr-x - source
drwxr-xr-x - swat
drwxr-xr-x - testsuite