Use "go32" instead of "msdos" for future expansion.

Add ^M to end of each line.

From-SVN: r9587

gcc/configure.bat

@@ -1,15 +1,16 @@
-@echo off
-if %1.==msdos. goto call_msdos
-if %1.==winnt. goto call_winnt
-echo Usage: configure msdos or configure winnt
-goto END
+@echo off
+if %1.==go32. goto call_go32
+if %1.==winnt. goto call_winnt
+echo Usage: configure go32 or configure winnt cpu
+goto END
+
+:call_go32
+call config\msdos\configure %1 %2 %3 %4
+goto END
+
+:call_winnt
+call config\%2\config-nt %1 %2 %3 %4
+goto END
+
+:END
 
-:call_msdos
-call config\msdos\configure %1 %2 %3 %4
-goto END
-
-:call_winnt
-call config\%2\config-nt %1 %2 %3 %4
-goto END
-
-:END