(EXINIT): Clear it to avoid problems with bad values.

From-SVN: r2134

gcc/fixinc.svr4

@@ -60,6 +60,10 @@ cd $LIB; LIB=`pwd`
 # unrecognizable.
 TERM=dumb
 export TERM
+# This prevents /bin/ex from failing if the EXINIT environment variable
+# was set to something invalid.
+EXINIT=""
+export EXINIT
 
 echo 'Building fixincludes in ' ${LIB}
 

gcc/fixincludes

@@ -18,6 +18,10 @@ INPUT=${2-${INPUT-/usr/include}}
 # unrecognizable.
 TERM=unknown
 export TERM
+# This prevents /bin/ex from failing if the EXINIT environment variable
+# was set to something invalid.
+EXINIT=""
+export EXINIT
 
 # Directory in which to store the results.
 LIB=${1?"fixincludes: output directory not specified"}