platform: fix read_from_file function

According to the description of "read_from_file", the function should
return a line from file when this line starts with 'match' string,
provided as an argument. But the current implementation does not follow
this description - it compares a full line (not only beginning) with the
'match' string. As a result, a desired result (line) will be returned by
the function only if a line is equal to the 'match' string.

To make the function work according to the description, replace strcmp
with strncmp.

Also remove tabulation from eol symbols to return a full line.

Signed-off-by: Dmitry Petrov <dmitry.petrov@rtsoft.de>

src/platform.c

@@ -231,7 +231,7 @@ char * read_from_file( const char * path, const char * match)
 
 	while ((nread = getline(&line, &len, f)) != -1 )
 	{
-		if( match == NULL || !strcmp(match, line )){
+		if (match == NULL || !strncmp(match, line, strlen(match))) {
 			found = line;
 			break;
 		}
@@ -239,7 +239,7 @@ char * read_from_file( const char * path, const char * match)
 	fclose(f);
 
 	if( found != NULL ){
-		char *eol = strpbrk(found, "\n\r\t");
+		char *eol = strpbrk(found, "\n\r");
 		if(eol) *eol = '\0'; //replace nwematchs with null-character
 	}else{
 		free(line);