Whitespace cleanup: Remove all multiple newlines

This patch removes all occurrences of double and triple
newlines.

Command used for this:
find .  -type d \( -name ffmpeg \) -prune -o \
        -regex '\(.*\.[hc]\|.*\.cc\)' \
        -a -not -name 'adrian-aec.*' -a -not \
        -name reserve.c -a -not -name 'rtkit.*' \
        -exec sed -i -e '/^$/{N;s/^\n$//}' {} \;

Two passes were needed to remove triple newlines.
The excluded files are mirrored files from external sources.

src/utils/pacmd.c

@@ -168,7 +168,6 @@ int main(int argc, char*argv[]) {
             goto quit;
         }
 
-
         if (r >= 0)
             break;
 

src/utils/pactl.c

@@ -715,7 +715,6 @@ static void get_source_output_info_callback(pa_context *c, const pa_source_outpu
         printf("\n");
     nl = TRUE;
 
-
     pa_snprintf(t, sizeof(t), "%u", i->owner_module);
     pa_snprintf(k, sizeof(k), "%u", i->client);
 

src/utils/pasuspender.c

@@ -59,7 +59,6 @@ static void quit(int ret) {
     mainloop_api->quit(mainloop_api, ret);
 }
 
-
 static void context_drain_complete(pa_context *c, void *userdata) {
     pa_context_disconnect(c);
 }

src/utils/pax11publish.c

@@ -40,7 +40,6 @@
 #include <pulsecore/native-common.h>
 #include <pulsecore/x11prop.h>
 
-
 int main(int argc, char *argv[]) {
     const char *dname = NULL, *sink = NULL, *source = NULL, *server = NULL, *cookie_file = PA_NATIVE_COOKIE_FILE;
     int c, ret = 1, screen = 0;