fix typo

see rspatial/terra#1106

Author: edzer

configure

@@ -3660,8 +3660,8 @@ printf "%s\n" "$as_me: Install failure: compilation and/or linkage problems." >&
    as_fn_error $? "cannot link projection code" "$LINENO" 5
 fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking GDAL: checking whether PROJ is available fur running:" >&5
-printf %s "checking GDAL: checking whether PROJ is available fur running:... " >&6; }
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking GDAL: checking whether PROJ is available for running:" >&5
+printf %s "checking GDAL: checking whether PROJ is available for running:... " >&6; }
 ./gdal_proj
 if test `echo $?` -ne 0 ; then
 gdal_has_proj=no

configure.ac

@@ -288,7 +288,7 @@ if test "${gdal_has_proj}" = no; then
    AC_MSG_ERROR([cannot link projection code])
 fi
 
-AC_MSG_CHECKING(GDAL: checking whether PROJ is available fur running:)
+AC_MSG_CHECKING(GDAL: checking whether PROJ is available for running:)
 ./gdal_proj
 if test `echo $?` -ne 0 ; then
 gdal_has_proj=no