patch [#37229] Save process slot in blender-softwaregl script

from Lawrence D'Oliveiro (ldo)

release/bin/blender-softwaregl

@@ -1,7 +1,6 @@
 #!/bin/sh
-BF_DIST_BIN=`dirname "$0"`
-BF_PROGRAM="blender" # BF_PROGRAM=`basename "$0"`-bin
-exitcode=0
+BF_DIST_BIN=$(dirname "$0")
+BF_PROGRAM="blender" # BF_PROGRAM=$(basename "$0")-bin
 
 LD_LIBRARY_PATH=${BF_DIST_BIN}/lib:${LD_LIBRARY_PATH}
 
@@ -20,6 +19,4 @@ XLIB_SKIP_ARGB_VISUALS=1
 
 export LD_LIBRARY_PATH LD_LIBRARYN32_PATH LD_LIBRARYN64_PATH LD_LIBRARY_PATH_64 LD_PRELOAD XLIB_SKIP_ARGB_VISUALS
 
-"$BF_DIST_BIN/$BF_PROGRAM" ${1+"$@"}
-exitcode=$?
-exit $exitcode
+exec "$BF_DIST_BIN/$BF_PROGRAM" ${1+"$@"}