spelling and formatting cosmetics

Originally committed as revision 7746 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -1334,43 +1334,43 @@ if test $cpu != "generic"; then
         601|ppc601|PowerPC601)
             add_cflags "-mcpu=601"
             if enabled altivec; then
-                echo "WARNING: Tuning for PPC601 but AltiVec enabled!";
+                echo "WARNING: Tuning for PPC601 but AltiVec enabled.";
             fi
         ;;
         603*|ppc603*|PowerPC603*)
             add_cflags "-mcpu=603"
             if enabled altivec; then
-                echo "WARNING: Tuning for PPC603 but AltiVec enabled!";
+                echo "WARNING: Tuning for PPC603 but AltiVec enabled.";
             fi
         ;;
         604*|ppc604*|PowerPC604*)
             add_cflags "-mcpu=604"
             if enabled altivec; then
-                echo "WARNING: Tuning for PPC604 but AltiVec enabled!";
+                echo "WARNING: Tuning for PPC604 but AltiVec enabled.";
             fi
         ;;
         G3|g3|75*|ppc75*|PowerPC75*)
             add_cflags "-mcpu=750 -mpowerpc-gfxopt"
             if enabled altivec; then
-                echo "WARNING: Tuning for PPC75x but AltiVec enabled!";
+                echo "WARNING: Tuning for PPC75x but AltiVec enabled.";
             fi
         ;;
         G4|g4|745*|ppc745*|PowerPC745*)
             add_cflags "-mcpu=7450 -mpowerpc-gfxopt"
             if disabled altivec; then
-                echo "WARNING: Tuning for PPC745x but AltiVec disabled!";
+                echo "WARNING: Tuning for PPC745x but AltiVec disabled.";
             fi
         ;;
         74*|ppc74*|PowerPC74*)
             add_cflags "-mcpu=7400 -mpowerpc-gfxopt"
             if disabled altivec; then
-                echo "WARNING: Tuning for PPC74xx but AltiVec disabled!";
+                echo "WARNING: Tuning for PPC74xx but AltiVec disabled.";
             fi
         ;;
         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
             add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
             if disabled altivec; then
-                echo "WARNING: Tuning for PPC970 but AltiVec disabled!";
+                echo "WARNING: Tuning for PPC970 but AltiVec disabled.";
             fi
             POWERPCMODE="64bits"
         ;;