fexecve: use correct name

src/include/fexecve.c

@@ -42,7 +42,7 @@ static inline int lxc_raw_execveat(int dirfd, const char *pathname,
 	return -1;
 }
 
-int efexecve(int fd, char *const argv[], char *const envp[])
+int fexecve(int fd, char *const argv[], char *const envp[])
 {
 	char procfd[256];
 	int ret;

src/include/fexecve.h

@@ -22,6 +22,6 @@
 #define _LXC_FEXECVE_H
 
 #include <stdio.h>
-extern int efexecve(int fd, char *const argv[], char *const envp[]);
+extern int fexecve(int fd, char *const argv[], char *const envp[]);
 
 #endif /* _LXC_FEXECVE_H */