remove incorrect (!) consts

-r

SVN=126198

src/lib9/utf/utf.h

@@ -123,7 +123,7 @@ int utfnlen(const char* s, long n);
 // byte terminating a string is considered to be part of the string s.
 // (cf. strchr)
 
-const char* utfrune(const char* s, Rune r);
+/*const*/ char* utfrune(const char* s, Rune r);
 
 
 // utfrrune returns a pointer to the last occurrence of rune r in the
@@ -131,7 +131,7 @@ const char* utfrune(const char* s, Rune r);
 // byte terminating a string is considered to be part of the string s.
 // (cf. strrchr)
 
-const char* utfrrune(const char* s, Rune r);
+/*const*/ char* utfrrune(const char* s, Rune r);
 
 
 // utfutf returns a pointer to the first occurrence of the UTF string

src/lib9/utf/utfrrune.c

@@ -16,7 +16,7 @@
 #include "utf.h"
 #include "utfdef.h"
 
-const
+/* const - removed for go code */
 char*
 utfrrune(const char *s, Rune c)
 {
@@ -32,7 +32,7 @@ utfrrune(const char *s, Rune c)
 		c1 = *(uchar*)s;
 		if(c1 < Runeself) {	/* one byte rune */
 			if(c1 == 0)
-				return s1;
+				return (char*)s1;
 			if(c1 == c)
 				s1 = s;
 			s++;

src/lib9/utf/utfrune.c

@@ -16,7 +16,7 @@
 #include "utf.h"
 #include "utfdef.h"
 
-const
+/* const - removed for go code */
 char*
 utfrune(const char *s, Rune c)
 {
@@ -33,13 +33,13 @@ utfrune(const char *s, Rune c)
 			if(c1 == 0)
 				return 0;
 			if(c1 == c)
-				return s;
+				return (char*)s;
 			s++;
 			continue;
 		}
 		n = chartorune(&r, s);
 		if(r == c)
-			return s;
+			return (char*)s;
 		s += n;
 	}
 	return 0;