Making in a string from multiple dots one dot

dots.c

#include <stdio.h>
#include <string.h>

int main(void) {
	// your code goes here
	char text[] = ".andrei... luca..varu.jora...a......sula.....";
	char * ptext = text;
	char * punct = ".";
	int numarPuncte = 0;
	int lungime = 0;

	while ((ptext = strchr(ptext+1, punct[0])))
	{
		numarPuncte = strspn(ptext, punct);
		if (numarPuncte != 1)
		{
			lungime = strlen(ptext + numarPuncte);
			strncpy(ptext + 1, ptext + numarPuncte, lungime);
			ptext[lungime+1] = '\0';
		}
	}

	printf("%s", text);
	return 0;
}