This removes a trailing backslash from a comment in
dw2-ranges-psym-warning.exp. This backslash causes Emacs to try to
reindent the next line. This happens because comments are weird in
Tcl -- they are not exactly syntactic and the backslash still acts as
a line-continuation marker here.
# the hole is there in the symbol table, but not the partial symbol table,
# we run into:
# (gdb) bt
-# warning: (Internal error: pc 0x555555554619 in read in psymtab, \
+# warning: (Internal error: pc 0x555555554619 in read in psymtab,
# but not in symtab.)
# ...
# (gdb)